«  Firefox 153 release uplifts 

Uplifts by Product
3270 uplifts

  1. OOM | small (11.41%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::FreeSpan::allocate (4.55%) 1969401
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (4.11%) 1472062
  4. shutdownhang | RtlpWaitOnAddressWithTimeout | RtlpWaitOnAddress | RtlWaitOnAddress | WaitOnAddress (3.22%) 1828066
  5. js::gc::HeaderWord::get (2.67%) 2061080
  6. shutdownhang | RtlWaitOnAddress | WaitOnAddress (2.53%) 1505660
  7. js::gc::detail::ChunkPtrHasStoreBuffer (2.41%) 1980548
Uplifts and Backouts
Bug Component Summary
1255338 DOM: Core & HTML Change the way pointerlock works on e10s
1969933 Settings UI Intermittent browser/components/preferences/tests/browser_experimental_features_filter.js | test-featureA should be visible after search cleared -
2031600 Site Reports indeed.com - Missing passkey support
2040628 Widget: Win32 [Windows] Use native API for pointer lock
2042931 Privacy [IPProtection] Update the sumo link
2043426 Installer windows_ubr installer telemetry metric is usually -1
2050242 Task Configuration Add release-branches to gecko_taskgraph's GraphConfigSchema
2050585 Task Configuration Use release_level from mozilla-taskgraph in gecko_taskgraph transforms
2052011 General about:config fails to load on Fenix due to inline JS being blocked by CSP
2052276 Contextual AI Enable S2S by default
2052460 Onboarding Update marketing onboarding card buttons in treatment C
2053012 General Perma Cargo-audit /builds/worker/checkouts/gecko/Cargo.lock:-1:-1 | Crate depends on a vulnerable version of crossbeam-epoch.
2053239 Task Configuration Use get_release_config from mozilla_taskgraph
2053363 Widget: Gtk Telemetry data for IME, GTK, DE is NULL a lot
2053586 Audio/Video: Playback No audible sound after resuming playback on mirlo
2053710 Search Overridden application provided search engines should not display the "New" label
2053757 Layout: Generated Content, Lists, and Counters Perma TEST-UNEXPECTED-FAIL | /css/css-pseudo/input-element-pseudo-open.optional.html | CSS :open for <input type=color> - assert_true: Should match :open after opening the picker. expected true got false when Gecko 154 merges to Beta on 2026-07-20
2053867 DOM: UI Events & Focus Handling Hit MOZ_CRASH(Invalid ContentCache data) at checkouts/gecko/widget/ContentCache.cpp:107
2054428 DOM: Navigation view-source:blob doesn't work
2054485 IPC Crash in [@ mozilla::ipc::FatalError | mozilla::ipc::IProtocol::HandleFatalError | mozilla::ipc::IProtocol::FatalError | nsDocShellLoadState::nsDocShellLoadState]
2054487 View Source Perma beta/esr toolkit/components/viewsource/test/browser/browser_srcdoc.js | single tracking bug
2054510 Release Automation remove landoscript payload builder from gecko
2054525 Inspector: Rules Pseudo-elements can be open one time only
2054812 Privacy [IPProtection] VPN Authorization breaks if fxa token expired
2055054 Graphics: Color Management [HDR] Add display information for HDR range to about:support
2055421 Release Automation release-to-esr action is broken with SchemaValidationError
2056076 General Remove freezeBuiltins exception from devtools loader
2056086 General Upgrade json5.js to the ESM version without unnecessary polyfills
2056166 Experimentation and Telemetry Crash in [@ java.lang.IllegalStateException: at android.os.Parcel.createExceptionOrNull(Parcel.java)]
2056650 New Tab Page Custom newtab wallpapers flash / blink some seconds after loading newtab
2056917 JavaScript Engine: JIT [riscv64] Compilation failure on GCC 15+: declaration of ‘int js::jit::InstructionBase::BaseOpcode() const’ changes meaning of ‘BaseOpcode’
2056926 CSS Parsing and Computation Paper over partial update issues causing startup crashes when loading UA stylesheets.
2057731 CSS Parsing and Computation Add telemetry for the "global stylesheet not found" case.
Uplifts and Backouts
Bug Component Summary
2056836 Toolbar Crash in [@ java.lang.IllegalArgumentException: at androidx.compose.ui.text.internal.InlineClassHelperKt.throwIllegalArgumentException(InlineClassHelper.kt:3)]
  1. OOM | small (12.61%) Known top crash
  2. abort | libMangoHud.so (6.58%)
  3. shutdownhang | RtlWaitOnAddress | WaitOnAddress (5.38%) 1505660
  4. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::FreeSpan::allocate (4.89%) 1969401
  5. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (4.33%) 1472062
  6. js::gc::HeaderWord::get (3.60%) 2061080
  7. shutdownhang | RtlpWaitOnAddressWithTimeout | RtlpWaitOnAddress | RtlWaitOnAddress | WaitOnAddress (3.06%) 1828066
Uplifts and Backouts
Bug Component Summary
2019042 Machine Learning: Frontend smartbar suggestion list is shorter than address bar making it hard to switch to open tabs, other suggest results further down
2037171 Machine Learning: General [Models] Re-architect Prompts
2040673 Crash Reporting crashhelper - does not honor MOZ_CRASHREPORTER_DISABLE=1 / application.ini
2041835 Machine Learning: Frontend Add tool-call telemetry events for Smart Window assistant with prompt versioning
2042101 Inspector [devtools-toolbox-crash] Error: Protocol error (TypeError): can't access dead object from: server0.conn3.watcher2.process53801//domwalker700 (resource://devtools/server/actors/inspector/event-collector.js:278:21)
2042830 Machine Learning: Frontend Smart Window: @-mentioned tabs not propagated to model - contextMentions arrives empty at prompt building
2044385 Machine Learning: Frontend Add Exa action log entry for web search tool calls (v0)
2046183 Machine Learning: General Implement V0 Search Loop validation, orchestration, and tool gating for search_the_web
2046494 Search Fetch additional results from Merino for Online Suggest
2046622 Machine Learning: Frontend Add Exa tool call support to Action Log
2050291 Machine Learning: Frontend Create SplitView Trigger that gets fired on using split view feature
2050294 Audio/Video: cubeb Perma windows cubeb.loopback_separate_streams | Expected: (io_mas) < (output_silence_mas), actual: nan vs 0.63661831792587364
2054960 General Add timeouts between LLMaJ telemetry runs
2056271 Machine Learning: General search_the_web tool swap forces tool calls into content
2056444 Audio/Video: Playback MP4 video remains stuck loading when a Blob URL is created from a fetched ArrayBuffer
2056626 Machine Learning: General Improve pageload handling in exa-powered search tool calls
2056669 Search [Google Lens Fenix] Remove `uploadByUrl` endpoint from Google Lens integration
2056725 Machine Learning: General Console.maxLogLevelPref used with a non-existing pref: browser.smartwindow.telemetryLogLevel
2056857 Sidebar [Regression] in 153.0: Cannot open History sidebar (ctrl-H) when "Show Sidebar" is disabled in the settings
2056865 File Handling Dragging a bookmark or website to the desktop marks the Internet Shortcut as untrusted/unsafe
2058197 General Extend the window of time during which the updater prevents firefox.exe from running by always applying the firefox.exe patch last in partial updates
2058264 IP Protection Bug: Mozilla VPN upgrade promo shows in regions where VPN is unavailable (Japan)
2058594 General optimize partial MAR operation order to minimize the chance of crashes
2058759 General remove firefox.exe hardcoding in make_incremental_updates.sh
2055683 Other …
  1. OOM | small (12.40%) Known top crash
  2. shutdownhang | RtlWaitOnAddress | WaitOnAddress (9.91%) 1505660
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::FreeSpan::allocate (4.74%) 1969401
  4. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (4.41%) 1472062
  5. shutdownhang | RtlpWaitOnAddressWithTimeout | RtlpWaitOnAddress | RtlWaitOnAddress | WaitOnAddress (3.69%) 1828066
  6. js::gc::HeaderWord::get (3.31%) 2061080
  7. js::gc::detail::ChunkPtrHasStoreBuffer (2.21%) 1980548
Uplifts and Backouts
Bug Component Summary
2056198 Homepage Permanent org.mozilla.fenix.settings.HomeSettingsFragmentTest.GIVEN the Homepage Sports Widget feature is enabled WHEN accessing settings THEN the World Cup toggle is visible | java.lang.AssertionError
2056364 Remote Settings Client Make remote-settings v2 the default for desktop clients
2056728 Tabs 3 dots menu on tab groups are not localizable
2058714 Search Same-document navigation can originate a SERP impression for a browser with no prior tracked session
2058906 Remote Settings Client Perma services/settings/test/unit/test_remote_settings_release_prefs.js | test_server_url_can_be_changed_to_another_valid_option - [test_server_url_can_be_changed_to_another_valid_option : 78] - when Gecko 155 merges to Beta on 2026-08-13
2058916 Toolbar IllegalArgumentException in HighlightedDomainUrlKt.computeDomainEndScrollValue
2059647 Data Sanitization Firefox freezes when deleting Browsing History
2060163 UI Tests Disable failing defaultSearchCodeDuckDuckGoUS UI test
2060511 Site Reports www.nintendo.com - Missing and misaligned elements

Not yet shipped

Uplifts and Backouts
Bug Component Summary
1255338 DOM: Core & HTML Change the way pointerlock works on e10s
1419649 Tabbed Browser When I close one of several tabs, after the tab closes, the wrong existing tab is opened as the current tab
1850288 JSON Viewer Show path in JSON Viewer
1971979 Agent deltaX and deltaY for widget wheel scroll events have to take the scaling of the layout viewport into account
2016939 DOM: Service Workers Perma [tier 2] wpt backlog /service-workers/service-worker/navigation-sets-cookie.https.html and same-site-cookies.https.html | single tracking bug
2019042 Machine Learning: Frontend smartbar suggestion list is shorter than address bar making it hard to switch to open tabs, other suggest results further down
2023355 Networking: DNS Firefox does not honor the HTTPS RR (Type 65) port parameter for secure WebSocket connections and incorrectly fallback to the default https port
2031600 Site Reports indeed.com - Missing passkey support
2031615 Networking: HTTP Happy Eyeballs v3 WebSocket and WebTransport support
2037171 Machine Learning: General [Models] Re-architect Prompts
2038819 Source Documentation doc: only markdown (instead of a md & rst mix)
2040618 Tooling With the new swipe controls, sometimes tapping doesn't work
2040628 Widget: Win32 [Windows] Use native API for pointer lock
2040673 Crash Reporting crashhelper - does not honor MOZ_CRASHREPORTER_DISABLE=1 / application.ini
2041835 Machine Learning: Frontend Add tool-call telemetry events for Smart Window assistant with prompt versioning
2042101 Inspector [devtools-toolbox-crash] Error: Protocol error (TypeError): can't access dead object from: server0.conn3.watcher2.process53801//domwalker700 (resource://devtools/server/actors/inspector/event-collector.js:278:21)
2042830 Machine Learning: Frontend Smart Window: @-mentioned tabs not propagated to model - contextMentions arrives empty at prompt building
2042931 Privacy [IPProtection] Update the sumo link
2043426 Installer windows_ubr installer telemetry metric is usually -1
2043741 Source Code Analysis Perma Linux&Win debug 'mach static-analysis autotest --intree-tool' did not run successfully. Please check log for errors.
2044271 Gecko Profiler Add a test-timeout idle-hang case study to the profiler-analysis skill
2044385 Machine Learning: Frontend Add Exa action log entry for web search tool calls (v0)
2044644 Source Code Analysis Activate clang-tidy's bugprone-forwarding-reference-overload check
2044836 JavaScript: GC Assertion failure: hasMarkingWork(), at js/src/gc/Sweeping.cpp:1336
2045043 XPCOM `final` classes don't always use `_FINAL` cycle collecting isupports macros.
2045434 CSS Parsing and Computation Implement initial support for CSSNumericValue.type()
2045749 Homepage [a11y] Accessibility Scanner flags underlying background elements on the LongFox game screen
2045866 General sendRemoveListener on closed conduit {8159730a-851d-4416-bd8b-5d6117192c1f}.355279694725121 ConduitsChild.sys.mjs:122:13
2046170 Lint and Formatting Enable the clippy lint configuration in mozlint
2046183 Machine Learning: General Implement V0 Search Loop validation, orchestration, and tool gating for search_the_web
2046494 Search Fetch additional results from Merino for Online Suggest
2046622 Machine Learning: Frontend Add Exa tool call support to Action Log
2046708 Graphics: WebRender [Wayland] Implement wayand viewport as float
2046731 Application Panel Add MDN icon to links in application panel
2046756 Sidebar browser_sidebar_expand_on_hover.js times out when run after browser_sidebar_escape_collapse.js due to leaked expand-on-hover state
2046771 Gecko Profiler ETWTools.h causes C++20 deprecation warnings on Windows over is_pod
2046911 Widget: Gtk [Wayland] Second D&D fails - only one wl_data_device is supported by compositors
2047187 DOM: Core & HTML Select option element shows duplicate content as it changes text content
2047206 Networking: WebSockets WebSocket constructor fails with ""
2047256 General nightly fails to config with: USE_LIBS contains "freeblpriv3", which does not match any LIBRARY_NAME in the tree.
2047283 DOM: Core & HTML High frequency /html/semantics/embedded-content/media-elements/ready-states/autoplay-with-slow-text-tracks.html | single tracking bug
2047328 Graphics: Canvas2D Perma canvas /html/canvas/element/manual/imagebitmap/createImageBitmap-serializable.html | Unhandled rejection | single tracking bug
2047437 CSS Parsing and Computation Implement alpha() function behind pref
2047456 New Tab Page WCW Blank page after matches end
2047465 PDF Viewer Update PDF.js to new version 3a093291135136f20babaf8d76c7dee3cc938515 from 2026-06-14 19:51:42
2050242 Task Configuration Add release-branches to gecko_taskgraph's GraphConfigSchema
2050291 Machine Learning: Frontend Create SplitView Trigger that gets fired on using split view feature
2050294 Audio/Video: cubeb Perma windows cubeb.loopback_separate_streams | Expected: (io_mas) < (output_silence_mas), actual: nan vs 0.63661831792587364
2050585 Task Configuration Use release_level from mozilla-taskgraph in gecko_taskgraph transforms
2052011 General about:config fails to load on Fenix due to inline JS being blocked by CSP
2052276 Contextual AI Enable S2S by default
2052460 Onboarding Update marketing onboarding card buttons in treatment C
2053012 General Perma Cargo-audit /builds/worker/checkouts/gecko/Cargo.lock:-1:-1 | Crate depends on a vulnerable version of crossbeam-epoch.
2053239 Task Configuration Use get_release_config from mozilla_taskgraph
2053363 Widget: Gtk Telemetry data for IME, GTK, DE is NULL a lot
2053586 Audio/Video: Playback No audible sound after resuming playback on mirlo
2053710 Search Overridden application provided search engines should not display the "New" label
2053757 Layout: Generated Content, Lists, and Counters Perma TEST-UNEXPECTED-FAIL | /css/css-pseudo/input-element-pseudo-open.optional.html | CSS :open for <input type=color> - assert_true: Should match :open after opening the picker. expected true got false when Gecko 154 merges to Beta on 2026-07-20
2053867 DOM: UI Events & Focus Handling Hit MOZ_CRASH(Invalid ContentCache data) at checkouts/gecko/widget/ContentCache.cpp:107
2054428 DOM: Navigation view-source:blob doesn't work
2054485 IPC Crash in [@ mozilla::ipc::FatalError | mozilla::ipc::IProtocol::HandleFatalError | mozilla::ipc::IProtocol::FatalError | nsDocShellLoadState::nsDocShellLoadState]
2054487 View Source Perma beta/esr toolkit/components/viewsource/test/browser/browser_srcdoc.js | single tracking bug
2054510 Release Automation remove landoscript payload builder from gecko
2054525 Inspector: Rules Pseudo-elements can be open one time only
2054812 Privacy [IPProtection] VPN Authorization breaks if fxa token expired
2054960 General Add timeouts between LLMaJ telemetry runs
2055054 Graphics: Color Management [HDR] Add display information for HDR range to about:support
2055421 Release Automation release-to-esr action is broken with SchemaValidationError
2056076 General Remove freezeBuiltins exception from devtools loader
2056086 General Upgrade json5.js to the ESM version without unnecessary polyfills
2056166 Experimentation and Telemetry Crash in [@ java.lang.IllegalStateException: at android.os.Parcel.createExceptionOrNull(Parcel.java)]
2056198 Homepage Permanent org.mozilla.fenix.settings.HomeSettingsFragmentTest.GIVEN the Homepage Sports Widget feature is enabled WHEN accessing settings THEN the World Cup toggle is visible | java.lang.AssertionError
2056271 Machine Learning: General search_the_web tool swap forces tool calls into content
2056364 Remote Settings Client Make remote-settings v2 the default for desktop clients
2056444 Audio/Video: Playback MP4 video remains stuck loading when a Blob URL is created from a fetched ArrayBuffer
2056626 Machine Learning: General Improve pageload handling in exa-powered search tool calls
2056650 New Tab Page Custom newtab wallpapers flash / blink some seconds after loading newtab
2056669 Search [Google Lens Fenix] Remove `uploadByUrl` endpoint from Google Lens integration
2056725 Machine Learning: General Console.maxLogLevelPref used with a non-existing pref: browser.smartwindow.telemetryLogLevel
2056728 Tabs 3 dots menu on tab groups are not localizable
2056836 Toolbar Crash in [@ java.lang.IllegalArgumentException: at androidx.compose.ui.text.internal.InlineClassHelperKt.throwIllegalArgumentException(InlineClassHelper.kt:3)]
2056857 Sidebar [Regression] in 153.0: Cannot open History sidebar (ctrl-H) when "Show Sidebar" is disabled in the settings
2056865 File Handling Dragging a bookmark or website to the desktop marks the Internet Shortcut as untrusted/unsafe
2056917 JavaScript Engine: JIT [riscv64] Compilation failure on GCC 15+: declaration of ‘int js::jit::InstructionBase::BaseOpcode() const’ changes meaning of ‘BaseOpcode’
2056926 CSS Parsing and Computation Paper over partial update issues causing startup crashes when loading UA stylesheets.
2057731 CSS Parsing and Computation Add telemetry for the "global stylesheet not found" case.
2058197 General Extend the window of time during which the updater prevents firefox.exe from running by always applying the firefox.exe patch last in partial updates
2058264 IP Protection Bug: Mozilla VPN upgrade promo shows in regions where VPN is unavailable (Japan)
2058594 General optimize partial MAR operation order to minimize the chance of crashes
2058714 Search Same-document navigation can originate a SERP impression for a browser with no prior tracked session
2058759 General remove firefox.exe hardcoding in make_incremental_updates.sh
2058906 Remote Settings Client Perma services/settings/test/unit/test_remote_settings_release_prefs.js | test_server_url_can_be_changed_to_another_valid_option - [test_server_url_can_be_changed_to_another_valid_option : 78] - when Gecko 155 merges to Beta on 2026-08-13
2058916 Toolbar IllegalArgumentException in HighlightedDomainUrlKt.computeDomainEndScrollValue
2059647 Data Sanitization Firefox freezes when deleting Browsing History
2060163 UI Tests Disable failing defaultSearchCodeDuckDuckGoUS UI test
2060511 Site Reports www.nintendo.com - Missing and misaligned elements
1301302 UI Widgets Add l10n support for picker for <input type="time">
1584318 WebRTC: Signaling Implement RTCRtcpParameters.cname/reducedSize
1777028 DOM: Security Intermittent dom/security/test/csp/test_upgrade_insecure.html | single tracking bug
1908744 Graphics Update ANGLE to 9eadd12e33d65b8c9101ddef1d77d1c9a07e07bf (Chrome Beta 148.0.7778)
1946559 JavaScript Engine Remove old `FindErrorInstanceOrPrototype` behaviour for Error.stack getter
2011413 Toolbar Private icon color in toolbar
2016685 Machine Learning: Frontend Unable to paste text in the Smart Bar using the context menu
2019349 WebRTC Implment RTCTransportStats.bytesSent/bytesReceived
2020704 DOM: Core & HTML Implement parsing of speculation rule set strings
2020707 DOM: Core & HTML Add support for speculationrules script type
2021850 Site Reports aladhan.com - Calendar is not generated as the "Generate" button does nothing
2022037 Messaging System Delocalize $l10n values for ASRouter admin
2023703 Tabbed Browser Nova changes for List All Tabs menu
2023763 Menus Nova styles for application menu
2027861 Networking: HTTP Support connection coalescing in HappyEyeballsConnectionAttempt
2028402 Graphics: WebGPU Cross-GPU WebGPU canvas presentation breaks on Linux due to Vulkan dmabuf / GL-EGL interop failure
2030307 Machine Learning: General Create a mochitest for get_open_tabs
2030319 Machine Learning: General Create a mochitest for search_browsing_history
2030325 Machine Learning: General Create a mochitest for run_search
2030328 Machine Learning: General Create a mochitest for get_user_memories
2031348 Lint and Formatting Fix a ruff warning in python/mach/mach/logging.py
2033552 Graphics Update libyuv to new version d23308a2a7442be8e559b1b471862fd7588d6a57
2033838 Task Configuration Add ability to clone from Github in hgmo-triggered graphs
2034549 Search [Google Lens] Move all strings for translation
2037492 DOM: Editor TextEditor should support cmd_pasteNoFormatting
2038353 Machine Learning: Frontend Investigate ChatGPT 431 error when summarizing long pages
2038789 General Move build system logic out of make
2038988 Tabs [tablets] The tab thumbnails seem small on the tab group bottom sheet
2039574 Sidebar Update telemetry probe to include new open tabs panel in revamped sidebar
2040960 DOM: Editor EditContext text formatting
2041479 Theme Firefox shows inconsistent tooltip colors when themed
2041687 General Let QR code generation on Windows, macOS, and Linux ride the trains
2041702 Sidebar new bookmarks sidebar exposes bare root folders, creating serious risks of dataloss
2041775 Disability Access VoiceOver reads visually-hidden text in the wrong order on https://www.apple.com/shop/buy-homepod/homepod/midnight
2042277 UI Widgets Date/time spinners misaligned with last item selected
2043469 Address Bar non-matching history shows while editing location in address bar
2044025 web-platform-tests Remove lsan-ignored for gkrust
2044067 Privacy Add telemetry for the trackers protections dashboard
2044078 Machine Learning: Frontend Smartbar model picker for BYOM does not work as expected
2044337 Site Reports www.okini.net - Error message displayed when attemtping to load the page
2044488 Sharing <Enter> doesn't copy the QR code by default
2044511 Sharing ".png" not appended to saved generated QR codes
2044524 IP Protection Unbold "Monthly data limit" and bold current bandwidth usage in VPN settings section
2044641 Machine Learning: Frontend Changing the AI model inside a tab will change the Ai model for every other open tab
2044965 General Finish fixing `unused manifest key: patch.crates-io.ohttp.revision` on Cargo invocations for Firefox
2044973 Audio/Video Enable remote media encoders by default on desktop/nightly
2045076 Machine Learning: Frontend Apply Action Log polish updates
2045111 DOM: Editor Add separate pref for enabling canvas-based EditContext
2045686 PDF Viewer Remove FaviconLoader resource://pdf.js principal substitution made obsolete by PDF.js's explicit favicon
2045818 Perfherder Add a log for which pushes trigger backfill
2045884 Machine Learning: Frontend Don’t show smartbar placeholder animation in sidebar
2045895 Messaging System Update assets on about:welcome screens to reflect brand refresh
2045945 Messaging System Update Nova icons for Messaging System
2046299 Widget: Gtk firefox nightly fails to compile in ../browser/components/shell/nsGNOMEShellService.cpp:32:10: fatal error: mozilla/widget/AsyncDBus.h: No such file or directory
2046337 Widget: Win32 refactor cloaked checks
2046392 UI Tests Migrate useAppWhileTabIsCrashedTest UI test to the efficiency framework
2046497 Sidebar Update open tabs sidebar panel shortcut and make it available in the
2046555 WebRTC Crash when joining Meet
2046623 Messaging System Create an "on message show" or "on screen impression" action
2046864 Theme Add history-20 icon for use by Smart Window
2046867 JavaScript Engine: JIT Align RISCV64 label tracking with the ARM64 implementation
2046874 Tabs Update the Tab Groups to use the Nova color
2046875 Site Reports Google world-cup minigame's game area is shifted upwards a bit and clipped
2046938 Performance Monitoring Remove now-unused Legacy Telemetry power measurements
2046968 Contextual AI Refactor S2S telemetry to allow us to understand where in the flow it is failing.
2047022 General include `en-US` in `all-locales`
2047046 UI Widgets Support seconds and milliseconds in the time picker
2047064 Shared Components High frequency [tier 2] devtools/client/shared/components/test/chrome/test_list_keyboard.html | Test timed out. - expected PASS | single tracking bug
2047113 JavaScript: GC Make more writes to GC data atomic under concurrent marking
2047123 XPCOM Avoid hashing in `nsTHashtable::MaybeGet` after `ClearAndRetainStorage()`.
2047124 Debugger Perma [tier 2] devtools/client/debugger/test/mochitest/integration/browser_dbg-features-stylesheets.js | single tracking bug
2047131 JavaScript Engine Perma mozilla/tests/wasm/webapi/esm-integration/source-phase-eval-error.tentative.html | expected ERROR when Gecko 153 merges to beta on 2026-06-15
2047189 Graphics: WebRender Port yuv images from brushes to quads
2047244 Nimbus Desktop Client Do not report Unuspported Features in enrollment status telemetry
2047392 Layout: Block and Inline Modernize InlineReflowInput
2047414 Audio/Video: Playback Update opus to new version 3da9f7a6db1c05c3996cb363a9d1931a978bf1be from 2026-06-12 15:59:34
2047457 New Tab Page Minimizing widgets with the ^ button doesn't work with View All
2047467 Audio/Video: Playback Update vendored mp4parse-rust to b693c7e4a91d
2047468 Graphics: WebRender Move interning key building blocks into webrender_api::key_types
2047476 Top Sites Remove Merino Manifest feature flags and settings
2047477 Settings Add Compose previews for ExtensionsMenuItem, WebExtensionMenuItems and ProtectionPanelBanner
2047494 Design System and Theming Add privacy mask gradient to AcornGradientScheme
2047588 DOM: Navigation Permanent builds/worker/checkouts/gecko/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/GeckoRuntimeSettings.java:2405:3 | Deprecated method should be removed. Expected removal version: 153 < current version: 154 (GV10)
2047641 DOM: Core & HTML Deindent Document::SetScopeObject.
2047661 General Start the nightly 154 development cycle
2047678 Profile Backup Set up triage rotation JSON file for Profile Backup
2047688 Privacy Update list of supported IP Protection regions
2047740 mots Add Brad Werth as a peer and restore Josh Aas as an active peer of Widget: macOS
393766 Layout: Text and Fonts incorrect letter-spacing on capitalized german letter "ß"
1619333 Widget: Cocoa Share icon doesn't appear if not placed in touchbar the first time the customize mode is open
1876514 DOM: Core & HTML Allow ConsoleInstances to treat their associated preference value as case-insensitive
1884982 Privacy: Anti-Tracking browser-blocking tests are taking too long to run in debug mode, investigate and re-enable
1901991 CSS Parsing and Computation [css-color] color-mix() doesn't handle none alpha on legacy rgb colors correctly.
1991697 General Remove Deleted [Tab name] and History Deleted snackbars
1996558 SQLite and Embedded Database Bindings Automatically encrypt SQLite databases on disk
2000683 Widget: Cocoa Mac - right click when not window is not active, disables 'Copy' in right click menu
2014771 Onboarding Remove the legacy Juno onboarding AND any remaining unused attributes from the onboarding redesign
2023631 Settings UI Add UI density selection to settings menu
2031312 Sidebar Enable the updated bookmarks panel in Nightly only
2035493 Performance Tools (Profiler/Timeline) Add a webchannel message for requesting source maps
2035573 DOM: Core & HTML Dialog tab order goes to first instead of next focusable element
2037393 Performance Tools (Profiler/Timeline) Update the outdated profiler frontend links in the repo
2038098 New Tab Page Newtab Remove region and locale prefs for contextual sponsored content
2038361 Machine Learning: Frontend Investigate and resolve Smart Bar vs Address Bar suggestion discrepancies
2038683 UI Tests Create new UI tests for Wallpapers and Edge-to-edge
2038696 Design System and Theming [WebCompat Reporter v3] Enable enhancements default to nightly
2038697 Design System and Theming [WebCompat Reporter v3] Update reasons dropdown strings and dropdown list UI
2038699 Design System and Theming [WebCompat Reporter v3] Add delete icon to deselect broken site reason and return back to dropdown list
2038702 Design System and Theming [WebCompat Reporter v3] Add logic to display remaining questions only when the reason is selected
2038719 Tabs Implement A/B treatment for drag and drop with in-place reordering and after drop reordering (with indicator)
2040024 New Tab Page Migrate World Clock widget to useWidgetTelemetry
2041351 Toolbar Memory Leak: MenuDialogMiddleware.setupExtensionState retains MenuDialogFragment via app-scoped AMOAddonsProvider.scope
2041508 Privacy VPN "Beta" label in Settings is not clickable
2042284 Startup and Profile System Intermittent toolkit/profile/test/xpcshell/test_create_default.js | single tracking bug
2042294 Layout: Text and Fonts Testcase creating same text with different font-size in N different spans is 7x slower to genrate in Firefox. Page also takes 2s to select text/reload/reduce memory, spending time in gfxFontCache::HashEntry::KeyEquals. Quadratic with N.
2042596 Applications: Shipit publish first release for each locale in product details
2042808 Password Manager Refactor `LoginManagerStorage.create()` to return a Promise instead of using a callback
2043090 Graphics: ImageLib jxl decoding is 3x slower in mac x86_64 pgo builds
2043614 Sidebar History search not working when sorting by "Website and date" or "Last visited"
2043632 DOM: Editor Reject formatting commands for EditContext
2043699 Remote Settings Client Three consumers of `Utils.baseAttachmentsURL` duplicate a try/catch fallback to a hardcoded CDN URL
2044117 Tabs Migrate TabsTrayItem from a sealed class to a sealed interface to reduce the memory footprint
2044502 IP Protection Update panel background color for errors, paused, connecting and disconnected states
2044951 Networking: HTTP With DoH, HEv3 races unreachable IPv6 first on cold connections, adding up to 40ms depending on the platform
2045037 Experimentation and Telemetry Update the microsurvey bottomsheet implementation to be consistent and use rounded edges
2045074 CSS Parsing and Computation 130.46 - 2.68% buzzfeed largestContentfulPaint + 17 more (Linux, OSX) regression on Thu May 28 2026
2045629 Disability Access APIs Intermittent Windows ba [taskcluster:error] Aborting task...
2045635 IPC Validate more fields around docshell load state
2045666 DOM: Core & HTML Clarify interaction between Extensions and Document Picture in Picture
2045876 Widget: Gtk [Wayland][Gnome] Menu dropdowns open in the wrong place or are entirely missing, on HiDPI configurations (e.g. 200% display scaling)
2046847 JavaScript Engine: JIT [riscv64] Use Zicond and Zbb in Clear_if_nan_{s,d} and atomic ops
2046945 New Tab Page Widgets doesn't match UI locale after switching language from settings
2046953 MFBT HashString is slow.
2047074 General image_builder: allow specifying architecture to override the default
2047292 General Fix some tests that rely on hashtable iteration order.
2047305 Machine Learning: Frontend Add remoteTypes for AISmartBar
2047308 Toolbar Rework menu state to use SessionState to enable code re-use between custom and in-browser tabs
2047330 Address Bar Urlbar view/panel blinks/flickers/reopens rapidly while resizing the window
2047355 UI Widgets Time picker button is visible on disabled fields
2047412 General nightly fails to compile with: include/mozilla/Variant.h:786:32: error: use of built-in trait '__type_pack_element<N, mozilla::MarkerSchema::DynamicData, mozilla::MarkerSchema::StaticData>' in function signature; use library traits instead
2047438 IP Protection Warning notification bar for site incompatibility with VPN shows up despite not having VPN turned on
2047473 Homepage Sports widget: order the pager chronologically and open on the live (or next upcoming) match
2047481 DOM: Core & HTML Adding N DataRefs via SetAttribute is Quadratic and gets comparitively slower as N increases. Adding DataRefs via DomStringMap is faster in Firefox. Chrome takes the same time with both APIs.
2047495 Inspector InspectorUtils.getComputationStepsSupportedCSSFunctions returns wrong strings for sibling-count and sibling-index
2047509 web-platform-tests Update web-platform-tests to 480a6431bfdf882effa60b5e9b6edb2e6cea5383
2047519 Task Configuration Run file-metadata, vendor, wpt-manifest, and wpt-metadata source-test tasks on git-backed pushes
2047547 Accessibility Tools Add MDN icon to links in a11y panel
2047574 Marionette [macosx1500-aarch64-vms] test_click_raises_element_not_accessible fail on headless Tart VM workers
2047575 JavaScript: GC Mark deferred weak maps on main thread for concurrent marking
2047604 Networking Fix pthread_mutex_lock failed in fuzzing builds while running WPT
2047615 General Record session duration in toolbox startup error probes
2047625 Graphics: WebGPU Enable `InstanceFlags::STRICT_WEBGPU_COMPLIANCE`
2047631 UI Tests Gate Home readiness before browser navigation in deleteSitePermissionsOnQuitTest
2047679 Audio/Video Update libvpx to new version 41e48324dd06c775d852b2c3d7d5ccc46aa72225 from 2026-06-17 00:00:00
2047681 Audio/Video: Playback Update dav1d to new version e9c5800ace888f1f10a66f7ffb8043a9c96d2508 from 2026-06-11 18:52:56
2047683 Audio/Video Update libvorbis to new version e3c9861ff096d52378e131ff8c334552e09cdffa from 2026-06-08 13:57:34
2047685 Performance: General Update xsimd to new version 5d2490f515cf773f984da9ec0a1aec103d00d238 from 2026-06-11 21:40:45
2047699 Performance [mach-try-perf] Add a nova variant option
2047703 New Tab Page football/soccer widget: country names in tooltip remain English (en-US) but should be localized
2047761 General Add note about std::source_location to "Using C++ in Mozilla code"
2047770 Privacy: Anti-Tracking BounceTrackingProtectionStorage::BlockShutdown logs spurious "Init failed" warning on the success path (inverted NS_WARNING_ASSERTION)
2047782 Firefox Source Docs: Content The String Guide implies `ns[C]SubstringTuple` inherits `nsA[C]String]` when it does not.
2047787 Panning and Zooming Make helper_click_and_hold_scrollbar_scrollend_after_snap.html work with layout.disable-pixel-alignment=true
2047789 PDF Viewer Update PDF.js to new version 7f7b38b424a601fdccd3b306b8b085bf80ce635c from 2026-06-15 19:41:10
2047798 Lando Enable GitHub PRs for ux-content team
2047811 Layout Add nsIFrame::IsInlineFrameOrSubclass()
2047825 General Content process 134309 isn't responsive while sending "DevToolsProcessParent:watchTargets" request. DevTools will ignore this process for now. DevToolsProcessParent.sys.mjs:321:15
2047826 General Update android nightly application-services version bump to new version 7bdf35b73b5b7d0a88703b768c0d8ac0e799a530 from 2026-06-16 05:01:53
2047847 Audio/Video Make RemoteMediaManagerParent::OnManagerThread() static
2047879 web-platform-tests Bad webrtc test expectation update from wpt-sync in bug 2045973 then bug 2046319
2047913 Async Tooling Add profiler markers for AsyncShutdown blockers (registration/removal and pending-at-timeout)
2047933 Homepage [Homepage Sports Widget] [phase3] Fix the flash in the sports widget when displaying a third place champions card and a finals card in the pager
2047978 Audio/Video Only allow HW video encoding with WMF in the GPU process
2047981 UI Tests Fix deleteAllHistoryTest efficiency UI test
2047996 CSS Parsing and Computation Make TypedOM colors reify properly currentColor
1679248 General Consider to expose autofill type for datalist support
1767271 Privacy: Anti-Tracking Add a way for cookie-clearing exceptions to not also affect cookie partitioning
1950875 DOM: Content Processes Investigate whether we ever still need the SingleNativeEventPump.
1992363 Migration Add ability to import browser data from Microsoft Edge on Linux
2002929 Settings UI Primary Password status label "ON" is not Bold
2009145 Browser Engine [LNA] Add notifyShown callback to track LNA prompt display state in Fenix
2009908 Inspector Display ::picker-icon pseudo element in markup view
2010557 Security: Process Sandboxing Update security/sandbox/chromium/ to Chromium 144
2016900 Preferences: Backend Refactor Preferences to hide some implementation details and improve robustness and performance
2018611 WebDriver BiDi Add "userContext" to certain WebDriver BiDi events and commands
2019333 WebRTC Implement RTCTransportStats.remote/localCertificateId
2020820 Storage: localStorage & sessionStorage [meta] Private browsing localstorage should persist data (encrypted) on disk
2022968 Onboarding Survey for uninstall users
2025264 Graphics: WebRender Port image borders from brushes to quads
2026796 Security: PSM Intermittent security/manager/ssl/tests/unit/test_sss_sanitizeOnShutdown_v2.js | single tracking bug
2027609 JavaScript Engine uint32_t Integer overflow in non-ISO Date parser
2027912 UI Widgets moz-page-nav updated Nova styling
2030416 General Text invisible in overlay input field after trying to type in address bar on AYN Thor (Snapdragon 8 Gen 2, Android 13)
2035341 Tooling Add lint rule to enforce usage of compose-button Button
2035575 Android Studio and Gradle Integration Wire in-tree application-services through the fat AAR and artifact-build pipelines
2037923 XPCOM Crash in [@ shutdownhang | mozilla::scache::StartupCache::GetBuffer]
2038234 Tabs [Tab Groups Onboarding] Implement data layer
2038272 Site Reports www.wowow.co.jp - Search input is pushed off screen
2039860 Bookmarks [A11Y][Importing bookmarks] Talkback announces "toggle" instead of "open" or "activate" for folder access and opening a bookmarked page
2040240 Tabbed Browser Pinned tab close in multiselecting tabs (with ctrl + w, and close tab button, and middle click)
2041298 Source Code Analysis Activate clang-tidy's modernize-use-nullptr check
2041425 XPCOM Migrate BHR aggregation job from python_mozetl/Airflow to mozilla-central/Taskcluster
2042458 IPC Move dom/canvas TiedFields (and possibly TupleUtils) into mfbt and support it in the IPC core serializer set
2042482 Networking: HTTP [LNA] Firefox shows frequent LNA prompts for users with AdGuard as their DNS server (because it seems to redirect all ad traffic to localhost)
2043104 Accounts and Sync Fenix doesn't need the "session scope" when signing in.
2043436 Messaging System [Nova] Menu Message - Split & Full bleed bottom layout
2044193 Contextual AI expose exceptions from LLM provider chooser
2044323 AWSY Replace all %s with fstrings in awsy
2044652 Site Reports iqconnect.house.gov - "Submit" button does not work
2044668 App Links Authentication flow shouldn't happen in initial tab load
2045172 DOM: Selection Hit MOZ_CRASH(Invalid ContentCache data) at checkouts/gecko/widget/ContentCache.cpp:106
2045537 Networking Testcase querying same URI across iframe is 7x slower than Chrome (big data URI + hashing)
2045545 Layout Testcase creating nodes and animating them is quadratic, spends 70% time in shifting data in nsTarray as part of Overflow Tracking.
2045679 Site Reports ebok.citylink.pl - Login page broken UI
2045792 Share Route long-press "Share link" context menu through ShareUseCases to enable native share sheet and context_menu_link telemetry
2045815 CSS Parsing and Computation Using `none` in color functions gives unexpected results
2045888 Machine Learning: Frontend Restore Smartbar focus when opening sidebar via Ask button
2046041 Privacy: Anti-Tracking Mirroring the URLClassifier prefs to ContentClassifier prefs
2046262 Networking WebTransport only allows 2 concurrent remote initiated streams
2046390 WebDriver BiDi WebDriver BiDi script.addPreloadScript generated functions not working after a few navigations
2046489 Tabbed Browser List all tabs menu for Nova: improve display of hidden tabs
2046492 IP Protection VPN toolbar button icons spill into each other in Customize Mode
2046639 Address Bar Update the Places provider's main query so it includes bookmark dates for explanation strings
2046802 CSS Parsing and Computation Extend CSSNumericValue.type() support to CSSMathSum
2046863 XPCOM Tests for user app data and profiles root directories are incorrect when appdata contains a profile
2047085 UniFFI Bindings Log UniFFICallbackHandler.#interfaceId into a crash annotation before aborting during xpcom shutdown
2047254 Privacy [IPProtection] Enabled the feature by default on nightly and beta
2047268 JavaScript Engine Update irregexp to new version 199031eb59cdee6a25799d4d4ea40092c3522a71 from 2026-06-12 00:00:00
2047320 Audio/Video: Playback Perma [tier 2] /mediasession/media-session-artwork-fetch.https.html | Set same origin media metadata - assert_equals: expected "strict-origin-when-cross-origin" but got "" | single tracking bug
2047325 Machine Learning: Frontend Perma TV TEST-UNEXPECTED-TIMEOUT | browser/components/aiwindow/ui/test/browser/browser_smartwindow_smartbar_model_select.js | application timed out after 740.0 seconds with no output
2047383 DOM: Navigation navigation.activation.from is not cleared on cross-origin BFCache reactivation when it previously referenced a same-origin entry
2047461 Graphics: WebRender Make data store and templates immutable during frame building
2047480 Networking: HTTP Assertion failure: false (MOZ_ASSERT_UNREACHABLE: Should not be called), at checkouts\gecko\netwerk\protocol\http\HappyEyeballsTransaction.cpp:134
2047627 Graphics: WebRender Add rendering of borders for CSS corner-shape
2047651 Networking Nightly fails to link with "error: undefined symbol: FREEBL_GetVector"
2047686 GTest Update googletest to new version 7140cd416cecd7462a8aae488024abeee55598e4 from 2026-06-03 01:03:04
2047708 DOM: Security Firefox fails to render HTMLVideoElement captions when Content-Security-Policy header is set to require-trusted-types-for 'script'
2047760 DOM: Web Authentication Treat "cable" as an alias for the "hybrid" AuthenticatorTransport
2047765 New Tab Page Fix Add/Edit Clcoks background
2047790 Sidebar Make browser_history_keyboard_navigation.js work with layout.disable-pixel-alignment=true
2047805 web-platform-tests ./mach test for WPT tests will only run one type of test
2047842 JavaScript Engine: JIT Remove MPhi::typeIncludes
2047849 Onboarding Onboarding clean up and refactor
2047930 Onboarding [Onboarding] Update Treatment C variant to the marketing data onboarding card
2047975 Password Manager [contextual-password-manager] Add new fox illustration for empty state
2047983 Settings UI Update fluent strings for Settings pane headers that use message references
2047989 General Explicitly pass purpose in telemetryEngine
2048006 DOM: Core & HTML Use subtree bloom filter to short-circuit AttrArray::SetAndSwapAttr scan
2048035 IP Protection Land strings that were added via experimenter
2048061 General Update jsoncpp to version 1.9.8
2048065 Interventions Automated test fixes for webcompat interventions during the v154 cycle
2048075 Nimbus SDK Don't use setExperimentsLocally in sample app
2048090 General Fix spelling of percent
2048092 New Tab Page WorldCW - Celebration animation phase 2 STRINGS
2048156 DOM: Core & HTML Testcase creating N namespaces is quadratic in Firefox and linear in Chrome. For N=100K, Firefox is 750x slower
2048159 UI Tests Update main menu UI tests with the new “Change wallpaper” option
2048168 Networking Split netwerk.happy_eyeballs.connection_establishment_time into two custom distributions
2048190 DOM: Security Fix test_beaconPolicy to not rely on hashtable iteration order.
2048196 UI Tests Re-enable urlBarQuickActionsTest UI test
2048206 General Use moz-src for touchbar
2048234 UI Tests Migrate verifyDesktopSiteModeOnOffIsEnabledTest UI test to the efficiency framework
1893908 Site Reports www.1blv.com couldn't show the whole webpage on Fenix
1959750 Downloads Panel Downloads reappear in the download queue if detected as malware.
1964517 Layout: Scrolling and Overflow Embedded images in zoomed Google Docs have horizontal white line tearing when scrolling with layout.disable-pixel-alignment = true
1991474 Messaging System Replace auto-resizing textarea code in restore-from-backup with field-sizing: content
2003690 Machine Learning: General Natural Language Add Memory
2009187 Site Reports deadpixeltest.org - Instructions pop-up misaligned, unable to close it
2009389 Site Reports anyto.imyfone.com - The "Table of Contents" covers the whole page
2011528 Theme Add selected tokens for menus
2018728 Tabbed Browser Add global keyboard shortcuts (Ctrl+Shift+Home/End) to move tab to start/end of tab strip
2019545 Site Reports www.gdm.or.jp - Desktop layout loads instead of mobile view on Android
2022409 Framework Use private class fields in devtools/client/framework/toolbox.js
2026593 General Split browser/components/extensions/test/browser/browser.toml in smaller parts
2027920 UI Widgets moz-badge styling update
2027921 UI Widgets moz-radio-group styling update
2029563 Site Reports shop.fratellilunardi.it - The page header rendering is broken causing issues
2030299 Search If there are duplicate keywords for search engines, the typed keyword and autocompleted keyword selects different engines
2031646 Site Reports www.interview.micro1.ai - Pop-up with Google Chrome being the recommended browser
2032364 Site Reports sirhus.dsi.cnrs.fr - Firefox Release, Beta and Nightly are not supported
2033692 General Update android nightly application-services version bump to new version 5dab154af8fd7bf29f5fddcb2a54e3a4c31de98e from 2026-04-21 05:02:39
2034921 Machine Learning: Frontend Re-enable smart cursor and integrate with Smart Window
2037798 Bookmarks Add a bookmark button to the in-app browser
2039575 JavaScript Engine: JIT Crash in [@ CanAttachDOMCall] on Raptor Lake CPUs
2039847 Tabbed Browser Add events for tab interactions
2040323 Bookmarks [Importing bookmarks] The import_started event fails to trigger when initiating a bookmark import
2040371 Site Reports keywords.smarthr.jp - Unsupported banner displayed
2040405 Tooling Add custom lint rule to enforce Kotlin acronym naming convention
2043225 Site Reports www.playmegamedusa.com - The game does not start due to "Device or Browser not supported." error on Android
2043234 Installer Stub installer ping call in .onUserAbort is incorrectly categorized as unknown_error instead of user_cancelled
2043353 Settings UI Focus is not restored when navigating back in about:preferences
2043478 New Tab Page Sports widget - Show matches beyond the 21 day limit
2043565 Mach Core `./mach tashgraph` makes a guess at the command you wanted to run then fails to run it
2044155 Raptor Replace all %s with fstrings in raptor
2044275 DOM: Core & HTML Show ::picker element instead of SelectParent when `appearance:base`
2044431 IP Protection Update isEnrolling / loading template
2044506 New Tab Page Intermittent TV browser/extensions/newtab/test/xpcshell/test_WeatherFeed.js | single tracking bug
2044898 Sharing Consider adjusting the QR code background to improve contrast in the light theme
2045119 IPC Parent process SIGBUS [@ IdleSchedulerParent::ActiveCount] — child can ftruncate the unsealed idle-scheduler counter shmem
2045149 Security: RLBox Hit MOZ_CRASH(RLBox crash: range has overflowed sandbox bounds) at /builds/worker/workspace/obj-build/dist/include/mozilla/rlbox/rlbox_helpers.hpp:28
2045200 Audio/Video: cubeb Testcase creating and immeditaly destroying N audioofflinecontext and then reloading the page spends 15minutes+ in Windows RPC. Chrome finishes in 13s.
2045352 Graphics: ImageLib For functions that take `already_AddRefed<T>&&`, change to `already_AddRefed<T>` (pass by value instead of by rvalue reference), to force an ownership-transfer into the function (in image/)
2045497 JavaScript: WebAssembly Debugger.Frame.terminated is true for a suspended, resumable JSPI wasm continuation frame that then runs again
2045593 Messaging System Nova: Feature callout refresh
2045731 Site Reports resultadosegundavuelta.onpe.gob.pe - Firefox is not a recommended browser
2045856 IP Protection Update VPN panel width to smaller size
2045861 Privacy: Anti-Tracking The 'Bundled Font' Canvas Renderers did not use the bundled font
2045886 Sidebar Display selected tab in sidebar open tabs panel when Nova is enabled
2046114 Memory Allocator Crash in PR_GetThreadPrivate when an arena purge AddRefs or Releases MallocProfilerCallbacks during thread death
2046126 Tooling Add a debug info bottom sheet to surface information about the application configuration
2046132 Theme Additional Nova icon pass on Toolkit and Firefox Theme
2046138 CSS Parsing and Computation Change perf-reftest-singletons/insert-subtree-not-nth-edge-has-pseudo.html to be more expensive (to reduce noise)
2046163 Privacy: Anti-Tracking Fix CSS Font Collection
2046254 Graphics Add AImageReader support on Android
2046493 Privacy: Anti-Tracking Collect missed Font Smoothing metrics
2046720 DOM: Core & HTML Some deprecated operations are not reported through the Reporting API's deprecation reports
2046890 JavaScript Engine Skip test262/intl402/FallbackSymbol/per-realm.js
2046897 Audio/Video: Playback deprecate media3/exoplayer load event handling
2046935 General Remove Legacy Telemetry BHR ping
2046956 New Tab Page Add shortcut button disappears when Top Sites rows are set to 1 on Firefox New Tab page
2047198 CSS Parsing and Computation [css-attr] Make attr deferring less aggressive
2047272 New Tab Page Firefox restart required to see "live" tab in world cup widget
2047275 MFBT nightly fails to compile with: ../include/mozilla/Result.h:524:8: error: 'mozilla::Result<V, E>::mImpl' has incomplete type
2047332 IPC Fix shared memory FreezeAndMapRW gtest
2047501 Inspector sibling-count() and sibling-index() are not simplified/replaced in InspectorUtils.getComputationSteps
2047510 Source Code Analysis Activate clang-tidy's modernize-type-traits check
2047553 MFBT Perma [tier2] /builds/worker/fetches/sysroot-x86_64-linux-gnu/usr/include/c++/10/bits/stl_algobase.h:105:32: error: 'int __builtin_memcmp_eq(const void*, const void*, long unsigned int)' specified bound 20 exceeds source size
2047648 Networking Under our HappyEyeballs implementation, dnsLookupEnd does not match web standards (and possibly regressed)
2047690 Geolocation Provider Catch network geolocation telemetry on exception
2047758 JavaScript Engine Error thrown from deduplication-truncated during memory reporting
2047821 Containers New container icons for Nova
2047830 Installer Move browser/components/attribution/ BUG_COMPONENT from Toolkit::Telemetry to Firefox::Installer
2047850 Widget: Cocoa Printing via system print dialog no longer works on Mac
2047924 Session Restore TabListener removes its pref observers from the wrong service (nsIObserverService instead of nsIPrefBranch)
2047940 Homepage Show longfox related text on the trackers blocked card when it's a longfox cta
2047942 AI for Development A number of skills do not set a name
2047965 New Tab Page Overlapping elements for sports widget statuses in medium size
2048008 Toolchains Remove clang 20 toolchains
2048019 Security Missing security.ui.neterror click event definitions in metrics.yaml cause telemetry to be silently dropped on the Felt Privacy error page
2048051 Nimbus SDK Update Android tests that use EnrolledExperiment to include is_rollout
2048062 Task Configuration Perma docker-image-ubuntu2404-packages [taskcluster:error] exit status 1
2048066 WebRTC: Audio/Video Set media.navigator.mediadatadecoder_vpx_enabled to true for release
2048099 DOM: Web Authentication WebAuthn: navigator.credentials.create() returns NotAllowedError instead of InvalidStateError when excludeCredentials matches a platform credential on macOS
2048150 WebRTC Implement WebRTC outbound-rtp keyFramesEncoded stats
2048152 Address Bar Does not keep the urlbar view open on Windows
2048174 CSS Parsing and Computation Serialization of color with origin alpha and specified alpha channel of 1 is omitting alpha channel
2048202 Homepage Crash in [@ java.lang.IllegalStateException: at androidx.fragment.app.Fragment.requireContext(Fragment.java)] on Homepage
2048212 CSS Parsing and Computation Include local name in subtree bloom filter.
2048230 General Update android nightly application-services version bump to new version af8def70a9aa700f6d408e62c362a7d6014d81f9 from 2026-06-17 05:02:26
2048235 PDF Viewer Update PDF.js to new version 2ed018ec2d365c466efa61d9c3c9b4991f796cfa from 2026-06-16 20:32:07
2048275 Try don't use lando-prod-new for try pushes from hg repos
2048317 Audio/Video Ensure we create a RemoteEncoderModule in content for the GPU process
2048330 Graphics: ImageLib Migrate from 'new' to 'MakeRefPtr' to allocate refcounted objects in image/CopyOnWrite.h
1710902 Mochitest [meta] Replace uses of BrowserTestUtils.waitForCondition with TestUtils.waitForCondition
1903659 Site Reports web.telegram.org - Can't make video and voice calls (see comment 14 for status)
1934534 Site Reports thnet.gov.cn - Scrolling does not work
1976255 Nimbus Desktop Client Use JSON import for schemas in NimbusTestUtils
1980483 UI Widgets Provide a way to exclude the <article> nested in <moz-card> from the a11y tree
1983439 Widget: Cocoa Show an indication when running under Rosetta on macOS (ie. running the Intel binary on Apple silicon)
1985452 CSS Parsing and Computation CSS transition does not work when using relative color of system color
1992915 GTest Run test suites in CI in fresh processes to ensure isolation and repeatability
2013800 DOM: Content Processes Missing Authorization in ContentParent::RecvAddCertException Allows Persistent TLS Certificate Override Injection
2014639 Graphics: WebGPU Autocad Web crashes in firefox if webGPU is enabled.
2015887 Machine Learning: On Device llama.cpp leaks ~500mb for each link preview performed until threads are exhausted
2020644 Site Reports catalog.archives.gov - The photos are displayed in the reversed order
2030589 JavaScript Engine TypedArray species fuse does not guard against Symbol.species on concrete typed array constructors
2032561 Privacy Collect telemetry using the metrics added for VPN
2032645 Shell Integration Unify Windows first run launch-on-login in browser-before-ui-startup, off by default, enabled via Nimbus
2033230 Widget: Cocoa Mouse hover stops working in Firefox (macOS on Apple Silicon) after left-clicking anywhere within the Firefox browser window
2034857 New Tab Page New-tab page placeholder-image thumbnail content have sharp bottom corners, which look inconsistent with top corners and with the nearby rounded tile-corners
2035442 Security New dnsNotFound error page does not give advices on checking the URL
2038923 Storage: IndexedDB IndexedDB: ability to have custom error messages for errors happening in the parent process
2039876 Crash Reporting Make the crash helper always add the required crash annotations when generating a dump
2040450 Networking Enable QUIC version negotiation
2042436 Lint and Formatting Fix ruff warnings in build/valgrind/mach_commands.py
2042916 Graphics: Canvas2D OffscreenCanvas.convertToBlob doesn't use default quality by spec
2042983 JavaScript Engine Differential behavior: MappedArgSetter delete-then-define drops length/callee on a non-extensible mapped arguments object
2043198 UI Tests Migrate Browser Testing suite to the efficiency framework
2043319 Networking: HTTP Investigate tests with HE disabled and enable HE for them
2043548 Gecko Profiler ProfilerChild::ProcessPendingUpdate holds sPendingChunkManagerUpdate across dispatch and IPC send, causing a TSan lock-order-inversion (potential deadlock)
2043613 Sidebar Use asyncExecuteLegacyQuery for smart-bookmark expansion in the bookmarks sidebar panel to avoid main-thread I/O
2044287 Form Autofill Refactor Form Autofill to drive all per-type behavior from a central data-type registry
2044342 UI Tests Add UI tests for file selection on extensions
2044464 General Notify the user about Local Mode when loading files via file:// URL
2044522 IP Protection Increase VPN panel max-height so that the location selector upgrade promo is visible with minimum 5 locations
2044674 Sharing The url from the QR code pop-up is displayed incorrectly on RTL builds
2044701 Widget: Gtk [Wayland] Implement xdg-session-management-v1
2045115 DOM: Core & HTML Get rid of "Window.fullScreen attribute is deprecated and will be removed in the future" warning from browser console on startup
2045278 Layout: Floats Put farthest-corner and closest-corner parameters for ellipse() behind a nightly-only pref?
2045752 Themes Browser theme light/dark token colors are applied to in-content pages
2045887 Disability Access APIs ARIA reflected idref(s) properties do not handle empty case, attached internals case can crash browser
2045917 Inspector Intermittent devtools/client/inspector/fonts/test/browser_fontinspector_editor-variable.js | single tracking bug
2045987 General Document Local Mode feature
2046009 Disability Access APIs VoiceOver forward command gets stuck on Spotify.com / manybooks.net
2046057 New Tab Page Widget layout issues when moving the sports widget with drag and drop while the Link watching list is open
2046193 Telemetry Vendor Glean SDK v68.0.0
2046583 IP Protection Remove --button-text-color-menu for forced colors locations-subview.css
2046657 Audio/Video: Playback Media-control plumbing cleanups split from bug 1962876
2047146 Networking Update happy-eyeballs crate to v0.8.0
2047249 JavaScript Engine: JIT Support veneer branches longer than short branches
2047250 JavaScript Engine: JIT Allow disabling constant pools in AssemblerBufferWithConstantPools
2047403 Performance Add 32-bit Windows Samply toolchain
2047590 Security: PSM nsIPKCS11Token no longer allows to programatically log in
2047610 Graphics: WebRender Port backdrop capture/renderer from brushes to quads
2047612 DOM: Editor Check ShouldResistFingerprinting when reporting underline style for EditContext
2047620 Address Bar Update handling of sorting of Semantic Search results so they rarely evict exact-match results from address bar results
2047630 Machine Learning: Frontend TV TEST-UNEXPECTED-TIMEOUT | browser/components/aiwindow/ui/test/browser/browser_aiwindow_smartbar_placeholder.js | application timed out after 740.0 seconds with no output
2047693 WebRTC Implement packetsSent/packetsReceived candidate-pair stats
2047749 Audio/Video: Playback Instrument MFCDM PlayReady error/playback telemetry (device context, session outcome, recovery)
2047859 Gecko Profiler Profiler stackwalking fails on Android with non-legacy packaging for libs with AAB
2047863 Inspector: Rules Don't show contrast information for base color in alpha()
2047878 web-platform-tests Perma [tier 2] /speculation-rules/prefetch/no-vary-search/prefetch-single-with-hint.https.html | expected ERROR | single tracking bug
2047934 General [DevTools Release Tasks - Cycle 153] Update webidl-pure-allowlist.js and webidl-deprecated-list.js
2048016 Search [Google Lens] Update API endpoint and parameters per new Google spec
2048033 AI for Development Add a README.md file or similar under .agents/skills to make it clear what kinds of skills go there
2048096 Gecko Profiler ProfilerParent acquires the IPC channel / profiler buffer lock while holding sParentChunkManagerAndPendingUpdate, causing a TSan lock-order-inversion
2048186 Theme Also let the content context menu use content's preferred color scheme
2048200 Homepage Expose longfox secret setting to all release types
2048221 Performance: Startup StartupCache::WriteToDisk optimization
2048245 Task Configuration Run android source-test lint tasks on git-backed pushes
2048262 Inspector: Rules Add MDN icon to link in color tooltip
2048266 web-platform-tests Multiple wpt failures caused by the sync
2048267 General Enable wpt tests beyond Nightly
2048274 Widget: Gtk Tabs duplicate instead of moving when dragging and dropping on latest nightly linux builds
2048297 Homepage Sports widget: from the quarter-finals, show the full remaining bracket in the no-team pager
2048302 DOM: Core & HTML Allow animations on new select pseudos
2048329 Experimentation and Telemetry Microsurvey bottom sheet requires scrolling to reach the Submit button
2048393 Networking: DNS Intermittent netwerk/test/unit/test_trr_with_proxy.js | test_trr_proxy - [test_trr_proxy : 98] Request count should be at least 1 - 0 >= 1
2048394 UI Tests [android] Make MCAC test resilient to new nullable params
2048409 Widget: Cocoa Remove blanket allow sysctl-read from RDD process
2048500 JavaScript Engine Assertion failure: uint8_t(ch) < 128, at /builds/worker/checkouts/gecko/js/src/util/Unicode.h:157
2048530 Security: PSM Update NSS to new version f739dacc764b5d7318cb173bc31729d15a3b4138 from 2026-06-16 23:30:28
2048596 CSS Parsing and Computation Use UnorderedRemoveElement for StyleSheet::mAdopters
2048605 General Update android nightly application-services version bump to new version 1ee69ac3e0d9c59bf1779e02d1d1812ba2adfba7 from 2026-06-18 05:02:28
2048608 Inspector Perma TEST-UNEXPECTED-FAIL | layout/inspector/tests/test_getComputationSteps.html | Got expected steps for "sibling-index()" on <li> - got "(0)[]", expected "(2)['sibling-index()', '1']" when Gecko 154 merges to Beta on 2026-07-20
2048610 Release Automation use all-locales when submitting nightly release metadata to ship it
2048650 WebRTC Perma [tier 2] TEST-UNEXPECTED-FAIL | /webrtc/RTCDataChannel-GC.html | While remote PC remains open, its datachannel should not be collected - assert_false: expected false got true
2048652 WebRTC Perma [tier 2] TEST-UNEXPECTED-PASS | /webrtc/RTCDataChannel-bufferedAmount.html | datachannel bufferedAmount initial value should be 0 for both peers - expected TIMEOUT
2048657 Experimentation and Telemetry TestNimbusApi et al. needs to match updates to Nimbus interface
2048690 CSS Parsing and Computation ComputedFontWeightRange should contain FontWeight instead of f32
2048692 WebRTC: Networking Perma TEST-UNEXPECTED-PASS | /webrtc-encoded-transform/script-transform-generateKeyFrame-simulcast.https.html | generateKeyFrame for rid that was negotiated away fails - expected FAIL
2048711 IP Protection Move ipp-activator manifest.json to extension root
2048719 PDF Viewer Update PDF.js to new version e74be44919b9367dd27b8210c92580eef6b054eb from 2026-06-18 17:57:51
1726107 UI Widgets Fix and re-enable the time picker UI
1907594 Messaging System [FxMS Infra] Create an inital set of messaging system targeting constants
1924027 Downloads API Avoid holding multiple copies of a large data uri in downloads and DownloadCache
1952663 Media Improved media notification with all buttons
1962363 Layout Testcase generating N resizeobservers spends 100seconds on reloading the tab. N=500000
1965483 DOM: Core & HTML Frequent /dom/events/scrolling/scroll-cross-origin-iframes.html | single tracking bug
1982177 General Window creation fails to position correctly on high-resolution monitors with 200% system scaling.
2004666 Graphics: WebRender Gitlab right sidebar text jitters while scrolling with pixel alignment disabled
2005411 Machine Learning: Frontend Update ChatStore.pruneDatabase with dbstat and schedule
2008125 New Tab Page Button lacks accessible name (Timer widget > ••• button)
2016086 General Intermittent toolkit/components/extensions/test/xpcshell/test_MatchPattern.js | single tracking bug
2030161 Performance Generate ETW (xperf) profiles for Speedometer 3 tests on Windows
2035736 about:debugging Make about:debugging UI consistent with the Nova style
2037516 Tabbed Browser List all tabs menu in Nova: new "View All Tabs" item
2039400 Bootstrap Configuration Bootstrap does not give dump_syms on aarch64 Windows
2039987 Graphics Perma [tier 2] macosx1500-aarch64-vms/debug Assertion failure: state.mApzcTreeManagerParent == aTreeManager, at checkouts/gecko/gfx/layers/ipc/CompositorBridgeParent.cpp:X
2040596 Shell Integration Add Kit image behind set default browser button in Windows Settings
2040682 Toolbars and Customization "Open file" Toolbar item becomes greyed-out after enabling it or changing its position
2040731 CSS Parsing and Computation Testcase creating N font axis is 21x slower in Firefox. Spends all the time around longhand font.
2041081 Machine Learning: Frontend Update icon for custom model in smartbar model select
2041784 DOM: Content Processes Add support for safeForUntrustedWebProcess JS actor property
2041823 Contextual AI add slider to summarization settings to configure sensitivity
2042453 Settings UI Update styles for passwords exceptions
2043114 General `stopPropagation` prevents context menu from shown
2043946 Networking: HTTP HTTP/3: malicious server can abort the parent process via STOP_SENDING on a WebTransport stream
2044198 Audio/Video: Recording Limit the size of black image buffers.
2044950 Address Bar [IPC Urlbar] Phase 0: Split UrlbarController into UrlbarParentController and UrlbarChildController, and add UrlbarParent and UrlbarChild actors
2044978 Graphics: WebRender 10.62 - 8.48% tsvgx + 1 more (Linux, OSX) regression on Thu May 28 2026
2045159 Layout: Scrolling and Overflow Assertion failure: mFrame->ComputeScrolledRect(mReferenceFrame) .IsEqualEdges(mScrolledRect) (The scrolled rect changed during an operation that assumed it would remain constant), at checkouts/gecko/layout/generic/ScrollContainerFrame.cpp:7079
2045650 Protections UI Hide "Clear site data" from trust panel in private browsing
2045694 Profile Backup Assertion failure: false (ClearOnShutdown for phase that already was cleared) in browser/components/backup/tests/xpcshell/test_BackupService_scheduler.js
2045874 Experimentation and Telemetry Add Nimbus flag for media notification improvements
2046017 Web Apps [Flatpak] "Add tab to Taskbar" unexpectedly shows "Create App" dialog and does not register the Web App in system search
2046118 Gecko Profiler Fix inverted refcount check in PageInformation::Release
2046215 DOM: HTML Parser Images nested in table should not be associated with form element inside the table if the form had been removed by script before the images were inserted by the parser]
2046502 JavaScript Engine Implement ECMA262 PR 3775 (Merge namespace-obj and ALL to namspace)
2046614 Themes Ensure all built design token files are up to date
2046701 UI Tests Re-enable 5 text selection related UI tests
2046774 Tabbed Browser: Tab Groups Tab group context menu actions fail when right-clicking the label or icon of a tab groups list row
2046933 Privacy: Anti-Tracking The extraction prompt for canvas.captureStream() is broken
2047265 WebRTC Update to libwebrtc 150
2047284 Experimentation and Telemetry Add telemetry for media notification previous and next button
2047350 Security: PSM Add tests for the new clubcard serialization format
2047506 WebDriver BiDi script.callFunction fails when moz:debugging is paused
2047507 Contextual AI 15.83 - 5.37% cnn-ampstories FirstVisualChange + 5 more (Android) regression on Mon June 1 2026
2047757 Settings UI Intermittent browser/components/preferences/tests/aiFeatures/browser_aiFeatures_smart_window_model_settings.js | This test exceeded the timeout threshold
2047885 Machine Learning: Frontend The AI Assistant will not see or close all opened tabs when asked
2047944 JavaScript Engine Add an ImportEntry for source phase import
2047980 Graphics: WebRender Remove cs_clip_rectangle in favor of ps_quad_mask
2048020 Containers Containers: remove description in the about:preferences#containers for the '+' policy
2048117 Graphics: WebGPU Update WebGPU CTS to new version cf0073691abc3b97587411c105e14f0af795db37 from 2026-06-16 18:40:53
2048132 Performance Bump Firefox Profiler toolchain revision to include additions to profiler-edit and .jslb.gz support
2048134 Performance Bump Samply revision to include runaway memory fix, on-the-fly Simpleperf compression, and macOS JIT dump fix
2048173 Bookmarks Enable bookmarks import feature for release
2048242 Raptor Speedometer3 test ignores browser cycle setting locally when running with --etw-profile
2048286 Raptor Consider adding the "java" profiler feature to all of the raptor tests
2048292 DOM: Core & HTML Crash in [@ mozilla::dom::ResponsiveImageSelector::~ResponsiveImageSelector]
2048312 General zucchini partial generation script should retry downloads
2048343 Audio/Video: Playback Update libsoundtouch to f738b1132e
2048356 Tooling Update OkHttp to version 5.4.0
2048410 Source Code Analysis Perma 'mach static-analysis autotest mach static-analysis autotest --intree-tool' did not run successfully. Please check log for errors.
2048453 General Remove or update metrics expiring at the end of Firefox 154: extensions.apis.dnr.*
2048538 Report Broken Site Report Broken Site Send More Info includes screenshot after explicit screenshot opt-out
2048543 Audio/Video undefined reference to 'RGBToUVMatrixRow_NEON'
2048551 Graphics: WebRender Add fuzz tolerance to wrench reftests for every config except linux
2048567 Themes Dark context menu hard to discern from dark page backgrounds due to ThreeDShadow not adjusting to dark mode
2048584 UI Tests Migrate verifyTheSaveToCollectionSubMenuOptionTest UI test to the efficiency framework
2048663 Internationalization: Localization test_l10nregistry_observer.js has a perma failure on shippable Android multi-locale builds
2048665 Graphics Use biplanar 4:2:2 8bit formats for IOSurfaces on Mac
2048697 Form Autofill Save address doorhanger more options button has strange appearance
2048701 DOM: Core & HTML Assertion failure when formatting Selection
2048712 New Tab Page WCW: View schedule's Key Dates are off sometimes
2048720 Themes Panel background and text colors shouldn't be Field / FieldText in HCM
2048742 Bootstrap Configuration Bootstrap does not download the correct rustup on aarch64 windows
2048744 UI Tests Flaky deleteDownloadsOnQuitTest and deleteSitePermissionsOnQuitTest: "Failed to navigate to HomePage"
2048751 New Tab Page Update locales for Firefox 152.0.1 train-hop
2048752 New Tab Page Update runtime-metrics for Firefox 152.0.1 train-hop
2048782 UI Tests Intermittent org.mozilla.fenix.ui.SettingsSitePermissionsTest#sitePermissionsItemsTest | java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.test.uiautomator.UiObject2.click()' on a null object reference
2048808 Tooling Update Spotless to version 8.7.0
2048809 Crash Reporting Update Sentry to version 8.44.0
2048830 AI for Development Perma /builds/worker/checkouts/gecko/.agents/skills/README.md:0 | Missing counterpart .claude/skills/README.md. Run `./mach lint -l agent-skills-sync --fix`. (agent-skills-sync)
2048838 Graphics Enable GpuProcessAndroidImageReaderMap when pref gfx.video.aimage-reader-gpu-process-android is true
2048839 General Update android nightly application-services version bump to new version 598d0b78ad8744d17c477c47a78ac9f55d38e6f7 from 2026-06-19 05:02:07
2048864 web-platform-tests Update web-platform-tests to fb83e524cf722ecfbf87c0ea1af5a79e963f271f
2048889 CSS Parsing and Computation ComputedFontStyleDescriptor should contain FontStyleFixedPoint instead of f32
2048897 Task Configuration win64-aarch64 update-verify-config fails on esr due to missing 115.37.0esr
2048914 UI Tests Disable verifyCopyPDFTextOptionTest UI test
2048959 CSS Parsing and Computation Perma TEST-UNEXPECTED-FAIL | layout/style/test/test_value_cloning.html | serialization should be nonempty for -webkit-clip-path: ellipse(closest-corner farthest-corner) - didn't expect "", but got it when Gecko 154 merges to Beta on 2026-07-20
2048991 UI Tests Intermittent org.mozilla.fenix.ui.SettingsAddonsTest#noCrashWithAddonInstalledTest | androidx.compose.ui.test.junit4.android.ComposeNotIdleException: Idling resource timed out: possibly due to compose being busy.
2048993 Contextual AI Shake to summarize feature available but not listed in AI controls
2049007 Window Management nsWindowWatcher::OpenWindow uses desktop pixels instead of css pixels when parentWindow is null
2049009 CSS Parsing and Computation [css-attr] attr cycle detection loop is order dependent
2049060 Contextual AI Update shake-to-summarize nimbus features to use the same defaults everwhere
2049093 General Update android nightly application-services version bump to new version ad7e69cddf8220de08d49c00da3041642ba5fac9 from 2026-06-20 05:01:32
2049145 PDF Viewer Update PDF.js to new version 124228e31868c1433ea8b5cf7be1e8cbb68a7c7b from 2026-06-20 20:31:58
1618329 General Developer tools view vanishes when I move my tab to a new window
1762458 Layout: Grid [css-grid] absolutely-positioned grid items don't fragment correctly
1815926 Networking URL host parser does not accept * or "
1939697 Site Reports Passkey is not supported in PayPal
1955963 Crash Reporting Make accessing annotations to nsCString objects safe in the main process
1999693 WebDriver BiDi Support "ignore" for "unhandledPromptBehavior" for file pickers
2011992 Android Studio and Gradle Integration Android Emulator configurations will need no-metrics flag
2030601 DOM: Navigation Intermittent docshell/test/unit/test_URIFixup_info.js | single tracking bug
2031096 Storage: IndexedDB Use BlobImpl as key for IndexedDB file actor deduplication
2031765 Themes Nova Figma importer changes color token logic in subtle ways, potentially causing problems for platform integration, webextension themes, and accessibility
2033463 Enterprise Policies Allow force/normal_installed extensions to be installed from AMO when install_url is absent in ExtensionSettings
2033874 Settings settings search "nothing turned up" graphic abruptly jumps downward when you press back button
2035147 Debugger Toggle the visibility of a style sheet
2035312 Machine Learning: Frontend Disable Suggestions Dropdown in Sidebar
2036399 Lint and Formatting Rewrite dot-mozilla-reference linter to use mozcheck (Rust)
2037094 JavaScript Engine Use fdlibm:pow instead of std:pow for math operations
2037360 Machine Learning: Frontend Add horizontal scroll indicator to assistant markdown table
2037519 Tabbed Browser List all tabs menu in Nova: remove "Recent Tab Groups" section
2039226 MFBT Use ProcessPrng in mfbt/RandomNum on Windows
2042306 SQLite and Embedded Database Bindings Suboptimal indexes for the SQL statement [...] storage/mozStoragePrivateHelpers.cpp:112
2042799 IP Protection [Android] - Expose refreshUsage
2042816 Password Manager Remove LoginManagerRustMirror
2042837 DOM: Content Processes Add logging for JS actor registration and matching
2043405 New Tab Page Remove all (Legacy) Telemetry probes for Activity Stream
2043516 Form Autofill Save/update credit card/address doorhanger confirmation toast is blue instead of Nova purple
2043731 Toolbar Refactor MenuDialogFragment feature bindings creation
2044164 Machine Learning: Frontend Add smooth transition for Assistant sidebar open/close
2044327 Tabs Stop counting 'inactive tabs' towards the tab count displayed in the tab tray
2044517 Request Handling ChannelWrapper.registerTraceableChannel should drop mChannelEntry if listener registration failed
2045142 CSS Parsing and Computation Avoid `delete this` in StyleSheetInfo::RemoveSheet
2045567 General Investigate parametrizing ThinLTO to achieve same performance as Full LTO for Linux
2045840 Graphics: WebGPU WebGPU: toDataURL doesn't work on a canvas that's never been rendered to
2046054 Crash Reporting Fix macOS crashreporter build failure by importing INSMutableParagraphStyle after NSMutableParagraphStyle_ was removed from cocoabind.
2046099 IP Protection [Android] Document unlimited mode in GeckoView
2046146 General Implement promptToSaveAddress
2046149 Autofill Add PromptRequest.SaveAddress data class
2046152 General Add a onAddressSave override implementation
2046195 Experimentation and Telemetry Add all settings values to the messaging Custom Attributes Provider
2046406 IP Protection [Android] Expose CountryList & Selection
2046537 General Create AddressSaveDialogFragment and add the wiring from the PromptFeature
2046553 Installer ERR_INSTALL_TIMEOUT isn't mapped to 'install_timeout' telemetry metric in telemetry.nsh
2046589 General Implement onAddressSave in GeckoCreditCardsAddressesStorageDelegate
2046649 WebRTC: Networking dom/media/webrtc/transport/stun_socket_filter.cpp:404:52: runtime error: member access within misaligned address 0x7b4526b033c2 for type 'const nr_stun_message_header' (aka 'const nr_stun_message_header_'), which requires 4 byte alignment
2046664 Raptor Perma BtimeCaR[tier2] raptor-browsertime Error: [custom-car] Browsertime failed to run raptor-browsertime Critical: [custom-car] BrowserError: invalid session id: session deleted as the browser has closed the connection
2047015 CSS Parsing and Computation Implement progress() function behind pref
2047203 Top Sites General smart shortcuts guard
2047248 Top Sites pref flip smart shortcuts v4p1
2047295 Audio/Video: Playback Pause and resume a tab's audio for a system audio-focus loss, distinct from a user pause
2047315 General Use requires instead of enable_if in mfbt/
2047463 Settings UI createStartupConfig gets passed the wrong preference
2047831 Performance Perma [custom-car] subprocess.CalledProcessError: Command '['/builds/worker/custom_car/chromium/src/out/Default/code_cache_generator', '--in_folder=/builds/worker/custom_car/chromium/src/out/Default/gen/chrome/browser/resources/side_panel/re
2047925 UI Tests Create new Tab groups related smoke tests
2048072 Marionette Client and Harness Intermittent macosx1500-aarch64-vms testing/marionette/harness/marionette_harness/tests/unit/test_chrome_switch_window.py | test_switch_tabs_for_new_background_window_without_focus_change | AssertionError: 0 != 1
2048146 Panning and Zooming Enable `layout.disable-pixel-alignment` on nightlies
2048183 DOM: Core & HTML Implement :open pseudo class for Select elements
2048226 Marionette test_switch_to_unloaded_tab: in-app restart times out on headless macOS VM workers
2048228 Password Manager Streamline addLoginsAsync across adapters
2048243 UI Tests Migrate addAWebsiteAsATopSiteTest UI test to the efficiency framework
2048254 Graphics: CanvasWebGL Support binding IOSurfaces to textures on ANGLE/EGL for WebGL
2048294 Networking: HTTP Crash in [@ mozilla::net::nsHttpConnection::Activate]
2048296 Messaging System [Nova] Menu Message - Split layout spacing fixes and new copy
2048349 Settings UI Perma TV browser/components/preferences/tests/browser_setting_pane_focus_restoration.js | test_top_level_back_restores_focus - Focus moved away from the privacy control when navigating to search - Didn't expect [object HTMLElement], but got it
2048360 Bookmarks Capture information on bookmark import error types
2048392 Networking: HTTP Crash in [@ mozilla::net::nsHttpTransaction::ParseLineSegment]
2048465 Shell Integration Remove or update metrics expiring at the end of Firefox 154: os.environment.desktop_entry_exists before Gecko switches to version 155 on 2026-07-20
2048602 Design System and Theming [WebCompat Reporter v3] Update "Preview report" button UI
2048655 Settings Toolbar customization settings in private mode have very low contrast after the Nova color updates
2048706 IP Protection Update radius for VPN panel status box and settings button
2048749 Machine Learning: Frontend Increment MAX_TABS in GetOpenTabs to 30
2048759 Raptor Local tests ran with --etw-profile are not blocked
2048810 Performance Don't run native profiling sp3 tasks with the same duplicates as the base task
2048833 Layout Perma [tier 2] scrolling/blob-seam-noclip.html == scrolling/blob-seam-noclip-ref.html | single tracking bug
2048877 CSS Parsing and Computation Avoid "double hash when dealing with the inline stylesheet cache "
2048915 Graphics: CanvasWebGL Add `webgl` Try preset
2048926 MFBT Make HashString faster for utf-16 as well.
2048938 Task Configuration Run build-infra kinds (fetch, docker-image, toolchain, packages) on git-backed pushes
2048941 Bookmarks Add import cancelled event to the bookmarks import
2049023 Storage Inspector devtools/client/webconsole/test/browser/browser_webconsole_object_inspector_local_session_storage.js is hashtable order dependent
2049097 CSS Parsing and Computation Perma [tier 2] /css/css-borders/corner-shape/corner-shape-backdrop-filter-overflow.html | Testing http://web-platform.test:8000/css/css-borders/corner-shape/corner-shape-backdrop-filter-overflow.html == http://web-platform.test:8000/css/css-borders/corner
2049102 General Perma devtools/client/shared/test/browser_outputparser.js | CSS property correctly parsed for "color: alpha(from red / calc(alpha * 0.5))" - Got "alpha(from red / calc(alpha * 0.5))", expected "<span data-color= when Gecko 154 merges to Beta on 2026-07-20
2049104 DOM: Security Perma [tier 2] macOS AArch64 Shipp /permissions/crashtests/permissions-query.any.sharedworker.html | expected TIMEOUT
2049141 Theme Default favicon asset is off-center
2049187 Sidebar Updated bookmarks sidebar panel: long titles overflow the panel and folders never show a tooltip
2049214 PDF Viewer Update PDF.js to new version 28a7606c1463ec753abda0b86e10bedbcc7e1043 from 2026-06-21 21:44:28
2049270 WebDriver BiDi Intermittent Android Wd async /webdriver/tests/bidi/input/perform_actions/pointer_mouse.py | test_move_to_position_in_viewport[default value] - assert 0 == 1
2049306 UI Tests Add missing TestRail link to verifyLibrariesListInReleaseBuildsTest efficiency UI test
2049307 DOM: UI Events & Focus Handling Incorrect tab focus after clicking internal link
2049354 Marionette Rename skip_if_no_window_manager marionette decorator to reflect what it checks (no user/GUI session)
2049380 IP Protection Replace `rem` with `em` for VPN panel max-height
2049477 Security: Process Sandboxing Remove content process sandbox nimbus feature
204598 Networking PAC: does not handle multiple return values correctly
1189155 Tabbed Browser Convert private tabbrowser properties to use # or the underscore prefix instead of "m"
1247553 Inspector Let the ruler remain appeared after reloading
1641989 Telemetry Replace the FOG IPC Backend with one that doesn't use PContent, the main thread
1890526 Source Documentation Doc generate warnings should be output by reviewbot or caught in a separate linter
1898454 Tabbed Browser Move tabbrowser docs into browser/components/tabbrowser/
1941968 Networking: Cookies Intermittent /cookies/partitioned-cookies/partitioned-cookies-a-b-a-embed.tentative.https.html | single tracking bug
1969102 General Support for shared per-task setup and teardown in xpcshell tests
1992973 Storage Enable on all channels WebExtensions storage.local database auto-reset on detected IndexedDB corrupted storage
1996503 Graphics Add a capability of allocating MediaCodec video decoder in GPU process if GPU process exists on Android
1997043 Layout: Text and Fonts [css-text-decor] text-decoration-inset: auto to `<length>` is not animatable
1998887 DOM: Navigation [wpt] Navigations caused by HTMLFormElement.requestSubmit is called sync in Gecko
2013802 General Remove remaining robocop test harness code
2016438 Storage: IndexedDB 55.08 - 50.08% idb-open-few-seq delete_duration / idb-open-few-par delete_duration (Windows) regression on Fri February 6 2026
2017152 Performance Move sp3 tests to LT
2029451 JavaScript Engine Heap corruption via concurrent getc_unlocked(stdin) in [@ js::ReadCompleteFile]
2031788 Tabbed Browser: Split View Remove “New” badge from Split View menu items
2031984 Tooling Add a lint check to catch manually creating ComposeView in Fragment.onCreateView
2033002 Machine Learning: Frontend Build feedback modal shell and wire to thumbs actions
2033466 Performance prototype a navigation benchmark test
2034541 Machine Learning: Frontend Send user feedback payload via Glean
2036456 WebRTC: Signaling Default SDP parser (sipcc) does not recognize ptime, minptime, or maxptime as Opus fmtp parameters.
2037623 IPC Use the IPCMessageUtils.h macros in place of trivial ParamTraits definitions
2038243 Tabs [Tab Groups Onboarding] Mark onboarding card as dismissed when user interacts with tab groups
2038712 Design System and Theming [WebCompat Reporter v3] Redirect to Google Safe Browsing report when "The site is deceptive” option is clicked
2039351 Machine Learning: Frontend Smart Window tab restore should restore the tab's chat conversation
2041678 WebRTC: Audio/Video Allow capturing a browser in a priviliged context beyond Nighly and invalidate device cache when recording a browser window on desktop in the privileged context.
2042206 Settings UI Update styles for payments and addresses edit dialogs
2042671 WebDriver BiDi Implement "browsingContext.startScreencast" and "browsingContext.stopScreencast" commands
2043423 Shell Integration Add Windows shell infrastructure for setting a custom launcher icon for taskbar, start menu and desktop - and expose to scripting
2043503 Disability Access APIs 151 doesn't work well with NVDA screen reader for the blind in protonmail
2043597 JavaScript: GC JIT test gc/bug-1867453.js fails when run locally with semispace nursery enabled
2043640 Gecko Profiler Lock-order inversion between the profiler ThreadRegistry lock and the Glean/Telemetry locks in `profiler_record_wakeup_count`
2043770 Audio/Video: Playback Perma | H265.HVCCToAnnexBExtraDataWithSmallPrefixSEI | Expected equality of these values:
2044719 Tabs [Tab groups - feature discovery] Add "new" blue badge to Tab Groups tab
2044784 DOM: Editor Caret is sometimes rendered in wrong place for EditContext BiDi input
2045459 JavaScript: GC Use-after-free: Zone::forEachNonEmptyChunk's clearCurrentChunk side effect defeats concurrent BackgroundUnmarkTask, leaving stale mark bits
2046129 Menu Only show the "Change wallpaper" menu item when on the Homepage
2046164 Machine Learning: Frontend Customize Toolbar page's "Overflow Menu" door hanger's arrow is no longer attached to the door hanger rectangle
2046346 Experimentation and Telemetry Allow 2 lines per answer in microsurveys to avoid cutting off longer text
2046466 Task Configuration Update gecko taskgraph to support esr153
2046626 JavaScript: Debugger API Consider marking DebuggerObject.unsafeDereference fuzzing-unsafe
2046844 Machine Learning: Frontend Adjust minor UI issues for Smart Window Nova
2047235 Private Browsing Update PBM newtab copy for Nova
2047288 Machine Learning: Frontend TV TEST-UNEXPECTED-TIMEOUT | browser/components/aiwindow/ui/test/browser/browser_aiwindow_smartbar_suggestions.js | application timed out after 740.0 seconds with no output
2047491 Search CTRL+up/down arrow does not re-order the search engines correctly anymore
2047562 General Save a profile instead of crashing when a fatal condition is hit during a profiled test run
2047819 Networking 6.05 - 2.06% Base Content Heap Unclassified + 4 more (Linux, OSX) regression on Wed June 10 2026
2047864 Design System and Theming [dark mode] The checkboxes have white checkmark, not black on a specific device
2047880 Downloads Enable download location Settings and new Download dialog on Beta and Release
2048023 Machine Learning: General Adding user agent to the MLPA calls from Smart Window
2048114 Settings Settings fragment uses bold text on old android versions
2048182 XSLT Improve pretty printing for when XSLT is toggled off.
2048445 DOM: Editor Shift+Enter inserts a line break at a stale caret position immediately after Japanese IME composition in Google Chat
2048449 JavaScript Engine: JIT Assertion failure: !icScript_->hasInlinedChild(fallback->pcOffset()), at jit/TrialInlining.cpp:826
2048568 Graphics: WebRender Clean up image and border primitives
2048606 Machine Learning: Frontend The Go/Arrow disabled state from the Smart bar shows a background
2048617 WebRTC Perma TEST-UNEXPECTED-FAIL | /webrtc-stats/supported-stats.https.html | inbound-rtp's qpSum - assert_true: Is qpSum present expected true got false when Gecko 154 merges to Beta on 2026-07-20
2048618 Networking Enable PMTUD for H3 on Nightly
2048728 Graphics: WebGPU Update wgpu to 43981de5 (2026-06-18)
2048756 Onboarding Android Onboarding may not resume after killing the application
2048775 IP Protection Update status box and loading state borders to use deemphasized color tokens
2048875 Task Configuration `staging_release_builds` target tasks method doesn't schedule anything
2048908 Graphics: WebRender Add support for CSS corner-shape with box-shadow
2048930 XPCOM Remove XPCOM's UTF8CharEnumerator, use mfbt's instead.
2048939 Task Configuration generate-profile and instrumented build should have empty run-on-projects
2048964 Add-ons Manager amContentHandler should make sure that system triggeringPrincipal came from parent
2048965 Task Configuration add index checks to platform-specific desktop nightly cron jobs
2048967 Machine Learning: On Device browser_ml_native.js leaves an intentional-crash minidump behind, causing PROCESS-CRASH failures at high frequency with the profiler enabled
2048970 Messaging System Add secondary_button_top "Restore from backup" to AW Import screen
2048972 Gecko Profiler Crash when trying to gather JS data too early
2049005 Toolbar Long-press back arrow button in menu no longer shows history panel entries
2049092 Preferences: Backend Reduce memory footprint of the CallbackTrie
2049105 web-platform-tests Update web-platform-tests to 110a6523e48d89efe9ead2063e4e01605cb56c6d
2049195 Layout Testcase generating N resizeobservers spends 97seconds on reloading the tab. N=500000 (Followup to bug 1962363)
2049254 JavaScript Engine Update assertion of importName during ModuleInitializeEnvironment
2049288 Firefox View Update firefox view triage list
2049304 Privacy Use kotlin.test asserts in IsoPromoDeadlineTest
2049309 DOM: Security Grammar mistake in docs/content-security/index.rst definition/definitions
2049353 Tabbed Browser 18.64 - 17.95% tresize + 1 more (Linux) regression on Tue June 16 2026
2049378 Release Automation don't submit empty string as locales to ship it
2049486 Web Speech Handle Web Speech media control interruptions on the content side
2049496 Address Bar Add remoteTypes for the Urlbar actor
2049527 PDF Viewer Update PDF.js to new version d71fe9025de50aaa80ea4a6d825c583352f93416 from 2026-06-22 20:29:14
2049544 Panning and Zooming helper_doubletap_zoom_oopif subframe-3/4 double-tap-to-zoom tests are fragile due to an edge tap on a 10px target
2049573 JavaScript Engine JS::ForOfIterator::closeThrow performs IteratorClose on the array instead of on an ArrayIterator
2049592 Translations AutoProfilerMarker truncation assertion in IntegerGemmIntrinsic.cpp is inverted, crashing debug builds when the profiler is active
2049611 Crash Reporting Use DEBUGINFOD_TIMEOUT to prevent system symbol scrapers from hanging for too long
2049618 Toolbar Long-press forward arrow button in menu no longer shows history panel entries
2049686 Performance Update docker for Android CaR
932767 JavaScript Engine: JIT Flag code paths tainted by unexpected NaNs to help eliminate canonicalizing floats loaded from typed arrays.
1585978 Storage: localStorage & sessionStorage Used storage space for saved cookies and site data is abnormal in some circumstances.
1850465 Disability Access APIs expose aria-haspopup="true" as "menu"
1896460 Networking: HTTP Improve sniffing compat (with Blink) for `text/plain` responses (without nosniff) that contain binary data
1957069 Widget: Win32 Firefox prevents Windows taskbar from appearing when taskbar is set to auto-hide.
2021136 JavaScript: WebAssembly toResizableBuffer is not working with WasmWorkers in Firefox 148.0 (64-bit)
2021155 CSS Parsing and Computation Investigate reworking property dependency tracking
2022545 IP Protection “Get started” panel briefly displayed when opening the VPN panel after browser restart
2022806 Graphics: WebGPU Intermittent "Cannot remove a vacant resource" panic in `readbackFromWebGPUCanvas` CTS test
2023223 Form Autofill Replace loginOrigin, addresses, payments, and form history richlist items with autocomplete-row-item
2027874 UI Widgets moz-button style updates
2030652 Privacy: Anti-Tracking Screen reader does not capture the reduce protection infobar only the buttons
2034104 JavaScript: Standard Library Ship Iterator Includes proposal
2036411 General Intermittent [tier 2] package> /builds/worker/workspace/obj-build/gradle/build/mobile/android/android-components/components/concept/base/generated/source/buildConfig/androidTest/debug/mozilla/components/concept/base/test/BuildConfig | single tracking bug
2038246 Tabs [Tab Groups Onboarding] Hide onboarding card after 3 impressions
2038352 Web Apps Allow callers of findOrCreateTaskbarTab to request that it always try to pin
2039423 New Tab Page Update default prefs for widgets
2039990 IPC Validate principals more on PBackground actors
2042090 Places Migrate History.remove lookups to array binding
2042092 Places Migrate removeVisitsByFilter to array binding
2042605 JavaScript Engine I-loop in querySelector on sfgate.com
2042896 Messaging System Initial Nova style updates for Spotlight surface
2042949 Build adjust the code to use nspr from github
2043462 DOM: Navigation Crash in [@ mozilla::dom::ContentParent::StorePendingLoadState]
2043708 Themes Create a segmented control reusable component
2044003 Performance Tools (Profiler/Timeline) Profile capture fails to load when a page has a URL that can't be parsed into a URI due to `getPageFavicons`
2044205 Themes Evolve border radius token scale
2044529 Machine Learning: General Memories v2: Generate from sessions and establish lineage
2045663 General Improve Magnifier area for <textarea>
2045706 CSS Parsing and Computation Set layout.css.tree-counting-functions.enabled for all users
2047517 Networking: WebSockets Re-enanble disabled h2 websocket WPTs
2047587 Networking: DNS Add telemetry for HTTPS RR lookup success rate, split by DoH vs native resolver
2047680 DOM: Content Processes Enable dom.jsipc.check_safeForUntrustedWebProcess
2047684 Audio/Video: Playback Update aom to new version 32059d384c261a9719bf78e5ffd7d86c63841de5 from 2026-06-15 00:00:00
2047911 Raptor Add a way to automatically install extensions when doing a local Raptor or Try Perf run
2047935 PDF Viewer Add a quick action for opening about:pdf
2048169 Networking: HTTP Reuse mDNSPrefetch for the HTTPS RR prefetch in nsHttpChannel::MaybeStartDNSPrefetch
2048386 New Tab Page Set up boilerplate Privacy widget (prefs/UI) for the New Tab page
2048425 CSS Parsing and Computation [text-box-trim] Implement block container trimming
2048426 CSS Parsing and Computation [text-box-trim] Implement inline box trimming
2048461 Experimentation and Telemetry Remove or update metrics expiring at the end of Firefox 154: nimbus_qa_prefs.* before Gecko switches to version 155 on 2026-07-20
2048464 Permission Manager Remove or update metrics expiring at the end of Firefox 154: web_notification.show_safe_browsing_block before Gecko switches to version 155 on 2026-07-20
2048501 Widget: Win32 When playing two videos simultaneously, with one in Picture-in-Picture mode, switching the other video to fullscreen causes the Windows taskbar to remain visible on top of the fullscreen video.
2048557 Spelling checker crash in rlbox-generated spellchecker code with 153 on OpenBSD
2048695 Machine Learning: Frontend Revert app menu relocation
2048696 Enterprise Policies ExtensionSettings policy ignores REG_SZ when there is a key (Windows registry)
2048736 General Add a task to build pygobject for tests to use
2048827 Layout: Text and Fonts FreeType2 ex-height and cap-height fallbacks are inadequate
2048858 Privacy Crash in [@ java.lang.ClassCastException: at org.mozilla.gecko.util.GeckoBundle.getString(GeckoBundle.java)]
2048865 UI Tests Fix verifyCopyPDFTextOptionTest UI test failure
2048931 Address Bar Add Mandy Cheang to the list of address bar reviewers
2049015 Graphics: WebGPU Increase WebGPU maxBufferSize to the safe limit
2049032 New Tab Page Get rid of a bunch of now-uneeded trainhop compatibility shims that have expired
2049044 DOM: Selection Hit MOZ_CRASH(Invalid ContentCache data) at checkouts/gecko/widget/ContentCache.cpp:106
2049086 Address Bar [IPC Urlbar] Remove the test-only listener API from UrlbarParentController and update its unit tests
2049087 Address Bar [IPC Urlbar] Phase 1: Route UrlbarView's provider lookups through the controller instead of UrlbarParentController.manager
2049124 Networking: HTTP Remove stale IP hint TODO in HappyEyeballsConnectionAttempt::SetupDnsFlags
2049132 js-ctypes Update libffi to version 3.6.0
2049316 Source Documentation Clarify moz-phab re-apply instructions in contribution quickref
2049429 Remote Settings Client Remote Settings clients polling for changes with stale expected values
2049520 Tabbed Browser Extract TabContextMenu code from tabbrowser.js
2049522 Layout test_bug1831148.html uses a fixed epsilon that fails at large scroll offsets when layout.disable-pixel-alignment is enabled
2049526 Disability Access APIs Use shadow tree for select list boxes
2049591 Networking Assertion failure: MOZ_ASSERT(NS_FAILED(mError))) at netwerk/protocol/http/Http3Session.cpp:360 [@ mozilla::net::Http3Session::Shutdown]
2049613 Networking Refactor HappyEyeballsConnectionAttempt to make it testable with gtest.
2049626 JavaScript Engine: JIT Avoid extra jump in CacheIRCompiler::emitInt32MulResult
2049631 JavaScript Engine: JIT Pass LabelDoc by-value for ARM64
2049637 JavaScript Engine: JIT Avoid emitting zero-shifts for int64 division on arm64
2049639 JavaScript Engine: JIT Use at-start allocations for LModPowTwoI/I64 on arm64
2049663 General `--with-compiler-wrapper` isn't considered when getting compiler args in ClangdBackend
2049678 JavaScript Engine: JIT Use at-start allocation for LCompare and LCompareI64
2049699 General RDP events are not logged to MOZ_LOG
2049702 General Target Android 17 in Focus
2049707 Android Studio and Gradle Integration Run AndroidX Lint checks on the Android Gradle plugin builds in CI
2049750 Toolbar "Swipe toolbar vertically to see open tabs" interferes with tab bar scrolling
2049754 Search Perma esr153 toolkit/components/search/tests/xpcshell/searchconfigs/test_searchconfig_google_additional.js | single tracking bug
2049766 Design System and Theming Replace existing "Select All" icon with the latest Acorn icon
2049800 New Tab Page Medium size widgets limit to 1 row, and have a show more widgets button
2049823 General Update android nightly application-services version bump to new version 1fae8ed00fdc326d4a54a2f17aaa3fee3a00c9db from 2026-06-23 17:16:26
2049847 Themes Nova button border is missing when browser.theme.native-theme=false
2049875 New Tab Page Update locales for Firefox 152.0.1 v2 train-hop
2049886 New Tab Page Sports widget - Remove Watch LIve button and modal from countries not included in the /watch-links endpoint
2049898 WebDriver BiDi Perma win Wd application crashed [@ DbgBreakPoint] | /webdriver/tests/bidi/input/file_dialog_opened/user_context_tentative.py | single tracking bug
2049910 PDF Viewer Update PDF.js to new version e6539f6516e18764656357074d57902094e5493e from 2026-06-23 19:34:30
2049983 Networking netwerk/test/unit/test_trr_with_proxy.js times out intermittently; raise requesttimeoutfactor
2050001 CSS Parsing and Computation Simplify logic for computed font-style descriptor of @font-face
2050015 SVG Fix test prefs following bug 2045595
2050024 Tooling Investigate new NPU feature flag for targeting Android 17
2050031 AI for Development Update webspec-index skill to reflect v0.10.0
2050035 General Don't overwrite an earlier failing run's profile when a test fails more than once
2050047 CSS Parsing and Computation Follow-up clean-ups to bug 2021155.
2050067 Networking Update happy-eyeballs crate to v0.9.0
1800120 DOM: Content Processes Remove CreateWindowInDifferentProcess
1812063 General Animations Accessibility/Reduce Motion settings in Android not respected in Fenix
1819001 Downloads [Downloads v2] download can not resume
1869522 WebDriver BiDi Add a basic "moz:profiler" module for starting and stopping the profiler
1967090 Lint and Formatting mach use-moz-src should fix up ts paths files
1979688 Tabbed Browser Use # private fields for tabbrowser's internal state instead of underscore prefixes
2003073 Machine Learning: Frontend Disable Certain Suggest Results
2005072 Audio/Video Implement HTML video and audio element lazy-loading via the loading attribute
2008785 Performance Crash in [@ java.lang.RuntimeException: at android.app.usage.StorageStatsManager.queryStatsForUid(StorageStatsManager.java)]
2027803 JavaScript Engine Enable Stencil navigation cache pref on nightly
2031838 Search Clear the private default search engine setting when the user unchecks the checkbox for using a different search in private windows
2032111 Experimentation and Telemetry Deserialize Nimbus information into LabsItem
2032178 Experimentation and Telemetry Update LabsMiddleware to link to Nimbus
2033102 Enterprise Policies Support allowed_permissions in ExtensionSettings enterprise policy
2034210 Machine Learning: Frontend Move context chips outside Smartbar and support grouped expansion
2035788 Address Bar [IPC Urlbar] Move TelemetryEvent::typeFromElement to UrlbarView
2038639 Panning and Zooming GPU process leaks 1408 bytes in APZCTreeManager::CheckerboardFlushObservers on headless macOS workers
2038859 Tabbed Browser: Tab Groups Improve accessibility of the new tab groups list
2040000 Settings UI No way to keyboard navigate back to the about:preferences page nav from the findInPage pane
2042088 Places Migrate removeFoldersContents DELETE to array binding
2042091 Places Migrate removeByFilter to array binding
2042093 Places Migrate insertTombstones to array binding
2042095 Places Migrate removeBookmarks DELETE to array binding
2042096 Places Migrate insertBookmarkTree tombstone cleanup to array binding
2043252 Toolbar Dedicated telemetry for new tab and site
2043993 JavaScript Engine discord not working after refresh
2044305 Graphics: Text Update harfbuzz to new version 14.2.1 from 2026-06-02 14:30:59
2044479 Firefox Extract interface for ContentAnalysis "backend"
2044518 Request Handling Remove delay before calling registerTraceableChannel from blocking webRequest listeners
2046524 Networking WPT: <link rel=prefetch> should fire the error event for network errors
2046594 New Tab Page Include Small size widgets in the "Maximize" action when in the widget row
2047232 Private Browsing Update PBM newtab promo for Nova
2047352 Netmonitor Stacktrace is not available for in-memory cached scripts
2047394 Form Autofill Fallback to heuristics if the ML fails or takes too long
2047496 MFBT Make `mozilla::Maybe` formattable
2047603 DOM: Core & HTML Move listbox select state to HTMLSelectElement.
2047626 Toolbar Add "Summarize pages" to Toolbar shortcut list in Settings > Customize
2047633 PDF Viewer Add the possibility to set Firefox as the default pdf handler on Mac OS
2047915 PDF Viewer Add a menu item for opening about:pdf in the hamburger menu
2047995 JavaScript Engine Ship Iterator Join proposal
2048048 Settings UI Policies interactions with the new settings UI for Firefox Home
2048113 Onboarding Android `MessageNotificationWorker` not unregistered when user does not have notifications enabled
2048362 Form Autofill Perform all field ML inference at once rather than each field separately
2048383 Settings UI "Manage payment methods" list empty when a saved card has no expiration date
2048755 DOM: Core & HTML Refactor Speculation Rules handling out of Document into it's own class
2048969 General Use std::remove_cvref_t when applicable
2049046 DOM: Content Processes Add a unified mechanism for determining when a content process becomes untrusted
2049049 DOM: Core & HTML crash at null in [@ AutoJSAPI]
2049064 Audio/Video: Playback GeckoView play() can reject before async autoplay permission resolves
2049144 Tooling Long VCS version numbers squash the label in Debug Info
2049178 Networking: DNS [discuss] don't asynchronously re-resolve negative A/AAAA DNS cache entries
2049301 Audio/Video: Playback Higher video seek-to-first-frame latency than Chrome on MacOS hardware decoding
2049359 Netmonitor Perma [tier 2] devtools/client/netmonitor/test/browser_net_prefs-reload.js | Node is not accessible via accessibility API: id: , tagName: DIV, className: splitter | single tracking bug
2049363 Graphics: WebRender Port picture composite modes to quad shaders
2049488 New Tab Page Scaffold the Daily Crossword widget
2049515 Experimentation and Telemetry Add UTM source detection for Reddit attribution
2049528 New Tab Page Add topsites.pinned_count metric to newtab ping
2049535 New Tab Page render-activity-stream-html.js fails with "Cannot find package 'meow'" after fresh npm install
2049602 Downloads Crash [@ android.os.FileUriExposedException: at android.os.StrictMode.onFileUriExposed(StrictMode.java) ]
2049615 Audio/Video: Playback Seeking in video fails
2049634 Framework More devtools tests fail with the Gecko profiler enabled by default
2049662 AI for Development Make it clear that tests are to be run, in AGENTS.md
2049738 Machine Learning: Frontend Align Ask dropdown hover states with Smart Window menu patterns
2049785 Search [Google Lens] Replace google Lens toolbar icon
2049798 New Tab Page World Cup Wallpapers: Semi-finals Message
2049845 New Tab Page Firefox 152.0.2 extreme memory usage and complete freeze on startup (regression from 152.0.1)
2049854 General macOS is dropping Rosetta so we need an Apple Silicon version of gn
2049865 General Disable MOZ_LINKER on GeckoView
2049868 General Use moz-src for dom/ipc
2049895 Graphics: WebRender Move more types and functions to webrender_api, in prep for content process interning
2049914 New Tab Page Hard-code in 11px as the font-size for the Sponsored text in Topsites
2049937 Data Sanitization New clear on shutdown permissions can not be controlled via enterprise policy
2049948 Privacy "Built-in VPN" menu item is shifted too far right when the device is rotated horizontally
2049961 Networking capture SSLKEYLOGFILE use in about:support
2049993 Gecko Profiler Deadlock between the Gecko Profiler buffer lock and Glean's labeled-metric map lock hangs content-process shutdown when the profiler is enabled
2050057 Graphics: WebRender Profiler screenshot readback crashes the GPU process with GL_INVALID_ENUM on GLES drivers lacking GL_EXT_read_format_bgra
2050063 DOM: Core & HTML setTimeout on detached iframes throws "Component not initialized" nsresult: "0xc1f30001 (NS_ERROR_NOT_INITIALIZED)"
2050149 General Update android nightly application-services version bump to new version 466d15abf2d341addc507adbfa3c497ad2de2391 from 2026-06-24
2050171 CSS Parsing and Computation Sibling counting functions should return (1, 1) when there's nothing to count
2050173 Graphics: WebGPU Textures may be queued for presentation even if they are not successfully submitted
2050195 Machine Learning: Frontend Fix glean.error.invalid_value for microsurvey.smart_window.chat metric
2050201 Task Configuration Update mozilla-taskgraph to v4.2.0
2050204 Layout: Positioned Return early for more frame types in WalkInlineDescendantsToReflowAbsoluteFrames().
2050224 Printing: Output [skpdf] Emojis print blank.
2050235 New Tab Page WCW: sportsWidget.interaction pref not set by Results, Upcoming navigations
2050272 Toolbar Use the nova color tokens for the toolbar shortcut
2050276 Storage: IndexedDB ActorsParents.cpp use of "LIMIT" SQL is inconsistent
2050299 New Tab Page FocusTimer: Fix progress circle on transition
2050307 Task Configuration Stop minifying the Focus instrumented-test APKs
2050342 Toolchains Bump the minimum supported version of clang to 19
2050382 UI Tests Remove selector imports from all pages
2050387 UI Tests Disable the verifyTheDeleteBookmarkMenuItemInACustomTabTest UI test
2050413 Privacy: Anti-Tracking privacy.wallet_schemes is wrongly set in browser/ but used in toolkit
187997 Composition Rewrap doesn't work with selected text
1293741 DOM: Events Clicked element matches(':active') returns incorrect results within 'mousedown' / 'mouseup' handler
1754698 Task Configuration "Create Interactive Task" on Treeherder for docker workers fails to set certain environment variables
1760099 Application Update Frequent toolkit/mozapps/update/tests/unit_background_update/test_backgroundupdate_exitcodes.js | single tracking bug
1901872 Themes Establish heading font sizes/tokens/classes for the browser chrome
1957165 Top Sites Making Amazon your default search makes Wikipedia the first tile
1979722 Address Bar Remove browser.urlbar.deduplication.thresholdDays pref
1979965 JavaScript Engine Update PreserveWrapperCallback signature to reflect the present reality that it's infallible
1985319 Crash Reporting Remove feature flag useNewCrashReporter
2018910 DOM: Core & HTML Lookup scoped registry for elements & shadowroots
2020017 Printing: Output Turn on SkPdf on Nightly.
2030383 Experimentation and Telemetry Collect Remote Settings uptake telemetry
2031098 DOM: File Remove nsISupportsWeakReference support from Blob
2031193 Accounts and Sync Changing your FxA password on Fenix causes Fenix to disconnect from the account.
2032719 Settings UI Scrolling the Applications table using the mouse wheel with a dropdown menu open from the Applications > Action will also move the dropdown menu
2032957 Gecko Profiler Enable the Gecko profiler by default with low-overhead features when running xpcshell tests
2037121 Settings UI More from Mozilla QR code lacks contrast when running a dark theme
2037517 Tabbed Browser List all tabs menu in Nova: overflow behaviour
2038896 General Vendor latest application-services
2039022 Tabs The sync button in the lower-right corner of the Synced Tabs screen rotates with its foreground icon when syncing is in-progress.
2041931 Printing incorrect formatting in the print-preview UI panel
2042085 Places Migrate getBookmarkDetailMap to array binding
2042089 Places Migrate cleanupPages DELETE statements to array binding
2042905 Performance Create labelled and compact versions of the ETW profile with profiler-edit. r?#perftest
2044429 Enterprise Policies Switch enterprise policies to the vendored cfworker schema in the tree
2044651 Menus Generate QR code… option is available when multiple tabs are selected if accessed from File > Share or url bar context menu
2044994 Memory Allocator Fix some name
2045809 Networking <link rel=prefetch> reuses a same-site cross-origin document on navigation that should be ORB-blocked from caching (preload/prefetch-document.html)
2045912 Accounts and Sync Remove public oauth APIs, go through the FxA state manager
2046016 Graphics: CanvasWebGL Linker errors when building ANGLE on macOS with gn_processor-generated build scripts
2046258 Security: PSM make nsIPKCS11Token interface functions asynchronous
2046608 web-platform-tests Run aamtests in treeherder
2046625 Address Bar [IPC Urlbar] Remove UrlbarController type alias
2046680 Top Sites Filter out existing top sites from popular sites section of the Add to Homepage bottom sheet
2047002 Machine Learning: Frontend Mock and wire NL tab grouping tool-call flows
2047005 Machine Learning: Frontend Instrument telemetry for tab grouping browser actions
2047362 DOM: Navigation navigation.updateCurrentEntry state storega bug
2047503 Security Lockstore - Replace the custom PBKDF2 implementation by a call to NSS
2047874 Inspector: Rules Wrong color displayed in color swatch for relative color using sibling-index()
2047923 Widget LocalesChangedObserver never observes intl:app-locales-changed -- weak observer silently never registered
2048085 Perfherder Resolve openCV numpy dependancy issue
2048151 Preferences: Backend Amend prefix observer documentation about what prefix actually means
2048338 Machine Learning: Frontend Add a single row of Shortcuts on Smart Window New Tab
2048346 UniFFI Bindings Add UniFFI bindings for the sponsored content client component
2048365 Nimbus Desktop Client Add some safeaguards around the Nimbus C++ API
2048389 New Tab Page Add strings for the Privacy New Tab widget
2048675 Address Bar Move RESULT_SOURCE and RESULT_TYPE to UrlbarShared
2048976 Address Bar Remove urlbar provider imports only used to access provider names in urlbar content code
2049320 Graphics: WebRender www.o4wheelchairs.com - Background video is missing
2049334 Networking: HTTP Happy Eyeballs v3 adds ~250ms to cold connections on HTTP/3-capable sites when QUIC can't connect quickly
2049498 Tabbed Browser Remove shadow from selected tab
2049545 New Tab Page Newtab clean shortcuts list and shortcuts drag n drop
2049576 Tooling Mozilla should be among the brands checked by the string linter
2049681 Menus Don't show "Open in Image in New Tab" and "Save Image As" for certain image protocols
2049708 Graphics Remove support for cross process GeckoSurfaceTexture sync
2049746 geckodriver Geckodriver kills Firefox immediately when connecting to non-rooted device
2049869 Graphics Reftest-analyzer images should use pixelated zoom
2049897 New Tab Page Add newtab.scroll boolean metric to newtab ping
2049899 Source Code Analysis Perma [tier 2] Sa TypeError: cannot unpack non-iterable NoneType object | single tracking bug
2049936 New Tab Page Scaffold the Stocks widget
2049941 JavaScript Engine: JIT Use short branches by default for riscv64
2049942 JavaScript Engine: JIT Use DisassemblerSpew for riscv64
2049965 JavaScript Engine: JIT Optimise ma_add32TestOverflow/ma_mul32TestOverflow with immediates for riscv64
2050046 JavaScript Engine: JIT Remove no longer used hasUnaliasedDouble
2050048 Task Configuration remove custom android_taskgraph loaders
2050095 Search Stock ticker $ search not working on Android
2050098 web-platform-tests Update web-platform-tests to a7553037780cee3a0f83a3e360d8f0544862e8f1
2050103 Search Flight suggestion card shows arrival/departure time in device timezone instead of airport's local timezone
2050146 Search Expose Search Optimization Feature secret settings on Beta
2050190 New Tab Page Use border-radius-medium for New Tab topsite tiles
2050292 Top Sites Change the "Show all" shortcut entry to appear when there are 8 shortcuts
2050296 Audio/Video: Playback Use MOZ_LOG_FMT for remaining files on dom/media
2050298 Web Audio Perma windows /webaudio/the-audio-api/the-audiocontext-interface/audiocontext-sinkid-setsinkid.https.html | etSinkId() with a valid device identifier and setting the same ID should succeed. - promise_test: Unhandled rejection with value: object
2050306 Tooling AssertIs and JUnitAssertNotNull lint detector tests fail to resolve their kotlin.test stubs under lint 32
2050403 Source Documentation Clarify git commit --fixup / git rebase --autosquash example in stack_quickref.rst
2050408 Task Configuration enable create-interactive action for generic-worker tasks
2050414 PDF Viewer Update PDF.js to new version a1953e7c3c2ae08baa6e3aeb43908b7bfbad208c from 2026-06-25 11:44:33
2050419 Theme Tweak and improve manifest token interpolation syntax
2050420 UI Widgets Error: can't access property "focus", defaultButton is undefined - for dialogs without default
2050429 UI Tests Standardize dynamic selector naming and complete the all lists across selector objects
2050463 Privacy Correctly dispatch "onboarding_not_now_tapped" when user taps on Not now in onboarding sheet
2050471 Printing: Output Print reftests fail on macOS with an obscure error message
2050528 Toolbar Change the icon of the "Summarize pages" toolbar shortcut to match the same from the menu
2050543 General Update android nightly application-services version bump to new version 8797f3e3e4eaf5fea9852311eff8a671dcced1b5 from 2026-06-25 05:02:14
2050554 WebDriver BiDi Perma [tier 2] Linux TEST-UNEXPECTED-TIMEOUT | mozilla/tests/webdriver/bidi/moz/profiler/start/start.py | expected OK
2050562 Task Configuration macOS 10.15 tests being scheduled on every push to Beta
2050582 DOM: Push Subscriptions Move Push XPIDL interfaces to dom/push
2050647 MFBT Default ctor of WeakPtr should not allocate
2050673 Privacy: Anti-Tracking Strip "social_share" on amazon with "Copy Clean Link"
2050737 Settings The uninstall survey option is not available in Secret settings
1358555 SVG Pass imgIContainer::FLAG_* variety to nsSVGUtils::PaintSVGGlyph
1927872 Messaging System about:welcome screens do not reflow at 400% zoom
1931546 Form Manager High frequency toolkit/components/satchel/megalist/content/tests/browser/browser_passwords_filter.js | single tracking bug
1962876 Audio/Video: Playback Speaker icon not staying when pausing media while other media is still playing (iframes)
1968697 Layout perma fail ubuntu 24.04 layout/base/tests/marionette/test_accessiblecaret_selection_mode.py
1992130 JavaScript: WebAssembly Stack buffer overflow in StableWasmArrayObjectElements inline array copy
2015949 General The devtools splitter is not focusable or controlable via the keyboard
2016273 Privacy: Anti-Tracking Fix window position in macOS WebDriver tests
2018762 New Tab Page Project Nova, Shortcuts - Update pinning behavior
2023026 JavaScript: Standard Library Uninitialized heap memory disclosure in CreateBigInt
2026775 Machine Learning: Frontend [Nova] Implement detached anchor bar container
2026785 CSS Parsing and Computation Cycles in non-custom references with unregistered vars/attrs references incorrectly propagate IACVT.
2027881 Machine Learning: Frontend [Nova] Add border, radius, and shadow to web content area
2027901 Machine Learning: Frontend [Nova] Update application menu styling
2027916 UI Widgets moz-select style update
2027942 Machine Learning: Frontend [Nova] Update onboarding model chooser styling
2031346 Lint and Formatting Fix a ruff warning in js/src/jit/arm/gen-double-encoder-table.py
2032179 Experimentation and Telemetry Refresh Firefox Labs information when `onUpdatesApplied` is called
2033325 Profile Backup Firefox keeps requesting Documents folder permission without explaining why
2040041 Machine Learning: Frontend Expose Mistral strings to localization
2040317 JavaScript Engine Intermittent /builds/worker/checkouts/gecko/js/src/jit-test/tests/debug/Debugger-wasm-esm-module.js:27:9 Error: Assertion failed: got 0, expected 1
2041097 Web Apps Taskbar Tabs page action appears on file: URIs
2042688 Firefox Source Docs: Content documentation: improve the contribute pages
2042951 Messaging System Add Nova gradient glow to Spotlight surface
2042952 Messaging System Update SingleSelect flair styles to match Nova designs
2043658 Machine Learning: On Device [llama.cpp] Update third_party/llama.cpp
2044052 Gecko Profiler Add a microbenchmark for marker insertion
2044602 Layout: Text and Fonts [css-text-decor-4] Allow percentages in `text-decoration-inset`
2044631 Address Bar Move UrlbarUtils.getLogger to UrlbarShared and make it work in non-chrome contexts.
2045240 Graphics: WebGPU Crash resizing window with WebGPU rendering in Construct 3
2045358 Disability Access APIs ATK Mapping for role marquee
2045925 Machine Learning: Frontend Create Test for NL retry integration
2045990 Themes The latest nightly does not respect custom themes
2047122 Machine Learning: Frontend The X Close button from the AI Manage tabs tool call is transparent on hover
2047214 Top Sites Remove sticky clicks from smart shortcuts
2047296 General Make Android audio-focus requests reflect a tab's Audio Session type, and relay system focus changes back to the tab
2047348 Privacy VPN onboarding shows up immediately if you haven't opened Fenix before
2047673 JavaScript Engine: JIT Reduce megamorphic load JIT code size with a megamorphic load trampoline
2047991 Third Party Packaging Snap build: cannot create directory '/snap/command-chain': Permission denied
2047997 JavaScript: Standard Library Ship Iterator Chunking proposal
2048027 Security Improve telemetry: load_aboutneterror (dnsNotFound online/offline directional probe)
2048402 Widget: Cocoa Remove window server access on Apple Silicon
2048455 Networking: HTTP Remove or update metrics expiring at the end of Firefox 154: networking.local_network_access before Gecko switches to version 155 on 2026-07-20
2048457 DOM: Networking Remove or update metrics expiring at the end of Firefox 154: networking.local_network_access_connection before Gecko switches to version 155 on 2026-07-20
2048459 Networking: HTTP Remove or update metrics expiring at the end of Firefox 154: networking.local_network_access_prompts_shown before Gecko switches to version 155 on 2026-07-20
2048587 General "Set as Default browser" doesn't show when Nimbus experiment wants it to
2048601 Address Bar Move L10nCache from UrlbarUtils.sys.mjs to UrlbarView.mjs
2048642 Privacy Record telemetry for catastrophic failures
2048694 Privacy [IPProtection] Record telemetry for when a generic network event occurs
2048844 Tooling & Investigations Report Broken Site sends tab-specific data for the wrong tab after edited URL triggers wrong-tab-info state
2048944 Internationalization Cannot detect ISO-2022-JP
2048947 Security: Process Sandboxing Crash in [@ base::win::internal::ScopedHandleVerifier::OnHandleBeingClosedImpl]
2048975 General Resource of last-private-context-exit is missing a browsingContextID or innerWindowId attribute resource-command.js:1023:13
2049271 Address Bar [IPC Urlbar] Update the urlbar docs for the UrlbarParentController/UrlbarChildController split
2049478 Machine Learning: On Device [llama.cpp] llama_model_params::use_mmap is exposed but not honored properly
2049492 Firefox Source Docs: Content Update a11y review docs to describe new phabricator automation behaviour
2049623 CSS Parsing and Computation Run additional Typed OM-dependent WPT with Typed OM enabled
2049871 Firefox Source Docs: Content Update a11y review docs to describe new design review structure
2049927 Audio/Video: Playback Add a capability to use AndroidImageReader with FFmpegVideoDecoder in GPU process
2049949 Graphics: WebGPU Update WebGPU CTS to new version b128863553525c1aa5a36c79744476f245e97655 from 2026-06-24 02:22:30
2049977 Graphics Add mAcquiredImageCount to AndroidImageReader
2050051 Search "Search Image with Google Lens" menu item disappears after closing a private window
2050055 Themes Use nativeTheme to restore the Nova brand text color on chrome surfaces without regressing platform integration
2050102 Data Sanitization Make clear on shutdown exception clear per cookie jar
2050108 Experimentation and Telemetry Error handling improvement on feature conflict
2050138 Layout: Block and Inline [text-box-trim] Set layout.css.text-box.enabled for nightly
2050164 Address Bar [IPC Urlbar] Phase 2: Make UrlbarParentController standalone (no DOM references)
2050458 Layout: Block and Inline Regression in layout with SVG icons in Firefox 153
2050505 Form Autofill Autocomplete row item text not visible when selected in darkmode on Windows
2050515 Privacy: Anti-Tracking Enable WebGL Vendor and Renderer protection in Nightly PBM
2050573 Form Autofill Add icons for form history items
2050587 Networking Report neqo primary-path RTT stats via Glean from neqo_glue
2050598 Data Loss Prevention Update Content Analysis SDK to new version 2a8191af30a4d1f591e2f758e595bdeea139e93a from 2026-06-25 18:11:11
2050603 Disability Access APIs crash near null in [@ ARIARoleMap]
2050610 Theme Mach buildtokens got out of date, update it
2050613 Layout: Positioned position-area block-axis center not scroll-compensated in position-try fit check (copy-paste in GetScrollCompensatedSidesFor)
2050618 DOM: Core & HTML Formatter for text node gives #text("string)" instead of #text("string")
2050621 Task Configuration mach try fuzzy --rebuild N does not duplicate dynamically-chunked test jobs that fit in a single chunk
2050639 IP Protection Border radius should be medium instead of xlarge for VPN panel
2050652 IP Protection VPN panel state illustration sizes don't match the spec
2050731 Toolchains Update the documented minimum clang version to 19
2050742 UI Tests verifyNavigationReachability[1: SettingsSiteSettingsExceptionsPage
2050784 JavaScript Engine: JIT x86-shared FloatRegister type only needs two bits
2050785 JavaScript Engine: JIT Enable commented-out assertions in arm64 FloatRegister
2050808 CSS Parsing and Computation Use property_counts in more places
2050838 Tooling Update android nightly application-services version bump to new version d0a23554c5dc10b7fb5822612d9651bf4952c5a4 from 2026-06-26T05:02:49
2050847 DOM: Core & HTML CheckPrincipalRunnable in RecvPBroadcastChannelConstructor is unnecessary
2050913 Printing: Output Perma TEST-UNEXPECTED-PASS | /css/css-page/monolithic-overflow-032-print.tentative.html | Testing http://web-platform.test:8000/css/css-page/monolithic-overflow-032-print.tentative.html == http://web when Gecko 154 merges to Beta on 2026-07-20
2050917 Tooling DependenciesPlugin formats build-metric durations with the default locale
2050964 DOM: Navigation Document::LastScrollGeneration and HasBeenScrolledSince ignore prescontext result, breaking Navigation API scroll restoration
2051033 web-platform-tests Perma /html/canvas/element/manual/imagebitmap/createImageBitmap-serializable.html | Unhandled rejection when Gecko 154 merges to Beta on 2026-07-20
2051044 General Update android nightly application-services version bump to new version 4cf17e040af886cac984ee58d1a5afbec10da50d from 2026-06-27 05:02:28
2051064 Console Run Web Console object inspector tests with Typed OM enabled
2051069 PDF Viewer Update PDF.js to new version f2f3a7fdce7a595576cb25e203abc65d0cfb83f2 from 2026-06-27 16:36:56
2051108 Graphics Fix AndroidImageReader::UpdateTexImage() error handling
1830615 General Intermittent devtools/server/tests/chrome/test_inspector-mutations-events.html | single tracking bug
1891053 Toolbar [Menu Redesign] Use preview parameters for all of the state permutations in MozillaAccountMenuItem
2002637 JavaScript: WebAssembly Remove asm.js code
2024005 Messaging System Update onboarding checklist to reflect updated designs
2034642 Networking: WebSockets New wpt failures in /websockets/ [mixed-content.https.any.serviceworker.html, mixed-content.https.any.worker.html, mixed-content.https.any.sharedworker.html]
2037689 Graphics: Color Management [HDR/Windows] Some GPU vendors need us to handle BT2100 HLG with a shader
2038013 Networking: Cache [no-vary-search] Enable no-vary-search http caching extension for release users
2038028 Networking: Cache [no-vary-search] Implement usage counter for no-vary-search headers
2039595 Sidebar Remember expanded/collapsed state of windows/devices in open tabs sidebar panel
2039961 Tabs [Tab groups drag and drop] Dragged tab is visually snapping back to it's original position before sheet moves in
2039969 Tabs [Tab groups] Missing microanimation for new group created
2040037 DOM: Navigation crash at null in [@ GetRootSHEntry]
2040297 DOM: Security Automatically enforce a baseline CSP for all documents loaded with a system principal
2040369 Privacy: Anti-Tracking ContentClassifier Engine should honor the reduced page protection
2041506 Keyboard Navigation About:keyboard UI improvements
2043176 Remote Settings Client Reenable unittests on Android and only skip uptake telemetry assertions
2043304 JavaScript: Debugger API Assertion failure: record->value() == module, at js/src/vm/Modules.cpp:140 with Debugger
2043766 Audio/Video Perma dom/media/webaudio/test/test_mediaElementAudioSourceNodeCrossOrigin.html | single tracking bug
2043819 Settings UI Settings search is unresponsive on first load
2044741 General JavaScript errorNotFoundError: No such JSProcessActor 'DevToolsProcess'
2046455 Enterprise Policies browser_policy_allowfileselectiondialogs.js test can't work in headless mode
2046678 Sidebar New sidebar: #sidebar-splitter is focusable but has no accessibility semantics
2046994 DOM: Navigation Assertion failure: !mOngoingAPIMethodTracker, at checkouts/gecko/dom/navigation/Navigation.cpp:1720
2047112 Machine Learning: Frontend The AI Assistant Manage tabs tool will not close unloaded tabs or tabs that are not fully loaded
2047472 General Don't override AutofillHints and InputType when we already know the hint.
2047559 Mozbase Add TestSummaryFormatter to mozlog for compact JSONL test run summaries
2047614 Containers Containers: introduce the 'add new container' feature in context menu
2048412 Sync Update Send Tab toolbar icon
2048423 XPCOM Simplify & Unify handling of Methods in RunnableMethod and MozPromise
2048648 Messaging System Add targeting/trigger for mailto handler feature
2048705 Experimentation and Telemetry Add nimbus flag to disable/enable system default prompt in onboarding
2048760 Layout: Scrolling and Overflow Unnecessary eUserAction RepaintRequest from APZ clobbers the last scroll snap target ids on the main-thread
2048788 SVG SVG feDisplacementMap unclamped scale causes integer overflow
2048829 Audio/Video: cubeb return nsCString from MockCubebStream::StreamName() to make it thread-safe
2048851 IPC Crash in [@ mozilla::ipc::FatalError | mozilla::ipc::IProtocol::HandleFatalError | mozilla::ipc::IProtocol::FatalError | nsDocShellLoadState::nsDocShellLoadState]
2049298 AI for Development "file good first bug" skill should mark bug filer as mentor
2049311 Address Bar browser_trust_panel.js tests fail for me
2049313 Privacy Incorrect VPN Onboarding sheet displayed on screen
2049357 Framework Intermittent devtools/client/framework/test/browser_toolbox_adopted_tab.js | adoptTabToExistingWindow - Test timed out
2049390 New Tab Page Create static UI message states
2049589 General Move nspr update to mach vendor subsystem
2049593 General Obsolete client.py as a mean to update nss and nspr
2049685 XPCShell Harness xpcshell test failing only with a late uncaught rejection never uploads its profile
2049689 Machine Learning: Frontend The Smart bar is missing borders with High contrast and NOVA enabled
2049932 Sidebar New sidebar: sidebar-panel-scrollable-content is incorrectly included in tab order
2050037 Form Autofill Support passport fields detection
2050083 Privacy [Intermittent] Users can get stuck in "Connecting" state in "VPN" Settings page after a sign-out
2050094 Android Studio and Gradle Integration Frequent non-unified/opt Android build fails with max runtime failure
2050180 JavaScript Engine Document argument compatibility
2050239 New Tab Page Weather widget small card layout issues with opt-in location locales
2050417 IP Protection [Nova] VPN Get Started “By proceeding, you agree to the Terms of Service and Privacy Notice” text is Align Left
2050483 Performance decomission x64 macOS CaR
2050495 about:debugging [Debugging - Setup page] 'No devices discovered' text minimum color contrast not respected
2050518 Protections UI Add method to query daily tracker stats to PrivacyMetricsService
2050565 Networking Change Happy Eyeballs connection attempt delay to 50ms (prev. 250ms) and multiplier to 2 (prev. 1)
2050601 Settings UI Settings UI test manifest sections are not in alphabetical order
2050669 New Tab Page Add pref to control max number of trackers show in widget
2050688 General Allow MOZ_LOG in the browser toolbox.
2050720 Top Sites Enable Add Shortcuts improvement by default
2050735 JavaScript Engine: JIT Port div/mod optimisations to riscv64
2050771 Layout Perma [tier 2] REFTEST TEST-UNEXPECTED-FAIL | layout/reftests/scrolling/blob-seam-noclip.html == layout/reftests/scrolling/blob-seam-noclip-ref.html | image comparison, max difference: 229, number of differing pixels: 993
2050775 Shell Integration 63.63 - 4.16% tp5n main_startup_fileio + 8 more (Windows) regression on Thu June 18 2026
2050786 JavaScript Engine: JIT Make Register default constructor and FromCode constexpr
2050787 JavaScript Engine: JIT Clean-up various issues in Architecture-riscv64.h
2050788 JavaScript Engine: JIT Assert riscv64 CallReg can be acquired
2050852 CSS Parsing and Computation Add basic worker coverage for CSSKeywordValue
2050858 JavaScript Engine: JIT Tidy-up MoveEmitter a bit
2050859 JavaScript Engine: JIT Don't acquire scratch register for cycles if no cycles are present in ARM64 move emitter
2050860 JavaScript Engine: JIT Improve RISCV64 move emitter
2050881 New Tab Page Use border-radius-xsmall for New Tab inferred personalization checkbox
2050892 Experimentation and Telemetry [experiment clean up] Remove Treatment A and Treatment B variants from the marketing onboarding page
2050945 JavaScript Engine Fastpath modulo for integers
2050963 Crash Reporting Windows in-process minidump can deadlock when the MiniDumpWithHandleData stream makes dbgcore LoadLibrary while threads are suspended
2051065 Design System and Theming Migrate Photon Colors usage to Nova Colors in Fenix
2051105 CSS Parsing and Computation Gate Typed OM color interfaces behind a separate pref
2051123 DOM: Core & HTML Guard aValue in nsGenericHTMLElement::AfterSetAttr id branch (Coverity)
2051149 DOM: Editor ParseCFHTML validates startFragment twice instead of endFragment (Coverity CID 1639416)
2051157 Disability Access APIs EVENT_ALERT not fired for content inserted into a nested descendant of an alert (eInsideAlert never set) (Coverity CID 1473402)
2051166 Graphics: WebRender Blurry font inside most popups on Wikipedia
2051167 New Tab Page Weather widget not showing fahrenheit/celsius switch
2051172 Settings Add telemetry for clicking on the "Privacy Settings" in Trust Panel
2051184 Theme Also let the clipboard menu use content's preferred color scheme
2051185 Settings Record telemetry when an user clicks into the tracker list in the Trust Panel
2051189 SVG Some potential micro-optimizations around SVG
2051213 JavaScript: WebAssembly Improve code generation for ref.null stores
2051246 Theme Panel headers have become oversized
2051273 PDF Viewer Update PDF.js to new version 649fb9c9704692dcdb506fb45d92999e67aad132 from 2026-06-29 11:21:08
2051274 DOM: HTML Parser Crash in [@ mozilla::IdleTaskRunner::CancelTimer]
2051285 Storage: Quota Manager Useless reinterpret_cast in EncryptingOutputStream_impl.h
2051296 Distributions Reset the distribution glean data when ignoring MozillaOnline
2051310 New Tab Page Newtab package.json node version is way out of date
2051327 New Tab Page Newtab shortcuts ... button wallpaper contrast issue
2051345 CSS Parsing and Computation Remove line-height: -moz-block-height.
1470011 Networking .tar.gz files mangled on download by double compression
1898891 Networking Move captive portal detection to an endpoint that returns 204
1962438 Widget: Gtk High frequency widget/tests/test_bug343416.xhtml | single tracking bug | when running only widget/tests/chrome.toml manifest
1977202 Shell Integration PinCurrentAppToTaskbarWin11 seems to frequently block thread pool shutdown
1977950 General Investigate whether we can define both android:isolatedProcess on GeckoChildProcessServices
2009633 Menu Clean up unnecessary logic in TranslationMenuItem
2010071 Try Add Thunderbird support to `mach try`
2021434 Storage: IndexedDB Assertion failure: !((bool)(__builtin_expect(!!(!NS_FAILED_impl(mAbortCode)), 1))), at /builds/worker/checkouts/gecko/dom/indexedDB/IDBTransaction.cpp:339
2024035 UI Widgets Handle elements in reorderable moz-box-groups are missing HCM styles
2024207 Machine Learning: Frontend Smartbar mentions suggestions list New Tab and open chats under recent tabs
2029227 Tabs [Tab Groups] Add Glean telemetry probes for tab group metadata and editing interactions
2031965 General Unified build uses absolute paths, which prevents buildcache / sccache / ccache direct hits across worktrees
2034609 Shell Integration Remove COM initialization in nsWindowsShellService
2035772 Contextual AI [Shake to Summarize] Page summaries is cropped in landscape on Samsung Galaxy S9
2038709 Design System and Theming [WebCompat Reporter v3] Make problem description mandatory for "Something else" dropdown reason
2040677 New Tab Page [macOS][VO] Unable to reach Edit/Remove options in World Clock widget with Voiceover Commands
2040892 Netmonitor Expose devtools.netmonitor.responseBodyLimit in devtools settings UI
2041123 Tabs Fix unstable parameters in Tabs Tray Composables
2041353 Password Manager Application Services Rust storage as primary login store on Desktop
2041458 Security: CAPS Stop treating moz-safe-about:srcdoc as a real content principal
2042861 Sidebar Update Glean descriptions for sidebar.link telemetry probe
2043922 Tooling Update Gradle to version 9.6.1
2044499 Audio/Video Add HW support plumbing to RemoteDecoderModule::Supports result
2044785 Tooling Update AndroidX Core to version 1.19.0
2046280 DOM: Events Don't enable SENSOR_ROTATION_VECTOR for deviceorientation event on GeckoView
2046307 Protections UI Trust panel doesn't get focus when opened
2046456 Enterprise Policies Stop showing all the _cleanup messages in tests
2047439 DOM: Web Crypto [WebCrypto] Use PK11_CreatePrivateKeyFromTemplate new NSS API
2047653 Sidebar Explore the option to bring the dropdown panel selection to the new sidebar
2048050 Preferences: Backend Audit ambiguous preference observer prefixes
2048824 Shell Integration Remove checkOnly pattern from Windows Shell service
2048840 JavaScript Engine: JIT Skip JitcodeGlobalTable BaselineEntry registration when Gecko profiler instrumentation is disabled
2048854 Shell Integration Clean up redudant `...Async` naming and related comments in nsIWindowsShellService
2049310 WebRTC: Audio/Video Selected framerate when decimating camera capture effectively floors to divisor
2049599 IP Protection Selected location text is unreadable (black text on purple background) with Alpenglow theme in Location subview
2049758 about:debugging The logos on the Debugging page are missing labels
2049916 Tooling Update AGP to version 9.2.1
2050049 Gecko Profiler Dump a profile off the main thread when an xpcshell test is about to time out
2050064 Password Manager Implement Rust Logins Sync Bridge
2050081 Telemetry Record corrected active tick limited to non-synthesized events
2050110 Audio/Video: Playback Firefox session gets partially unusable after following specific steps on X page
2050111 Messaging System Onboarding checklist progress bar moves from left to right on RTL
2050121 Themes Make it so that moz-segmeneted-control-items grow to fit the width of the moz-segmented-control
2050473 Firefox Add cross-platform support for DLP framework (but not the content analysis backend)
2050527 Accounts and Sync Move SyncEngine and SyncConfig to concept-sync
2050576 Audio/Video: Playback Add raptor test for seeking performance
2050581 Design System and Theming Create a version of FloatingActionButton that accepts a custom content
2050590 Experimentation and Telemetry [UI] Update "Conflicts with an enabled Lab" to final copy
2050691 XPCOM Frequent Hit MOZ_CRASH() at checkouts/gecko/xpcom/build/LateWriteChecks.cpp:X | single tracking bug
2050819 Graphics: ImageLib Add a way for the webcompat add-on to force sync-decoding of images in particular subtrees
2050833 UI Tests Replace custom element functions from verifyTheSaveToCollectionSubMenuOptionTest
2050882 General 62.68 - 5.24% tp5n main_startup_fileio + 3 more (Windows) regression on Fri June 12 2026
2050888 Search [Google Lens] Enable Google Lens in nightly by default and enable secret setting for beta
2050909 Messaging System Remove import checkbox from EASY_SETUP screens and showEmbeddedImport check
2050993 DOM: Core & HTML Intermittent TV dom/base/test/test_bug1268962.html | not expecting load event for http://example.com/tests/dom/base/test/file_bug1268962.sjs?statusCode=200&cacheControl=max-age%3D120
2051047 CSS Parsing and Computation Enable CSS Typed OM by default in Nightly
2051090 Crash Reporting crashed-tab UI doesn't show any check on the "submit crash report to Mozilla" checkbox, even when it's checked
2051098 Audio/Video: Playback Crash in [@ mozilla::Maybe<T>::ref | mozilla::AppleVTDecoder::ProcessDecode]
2051120 CSS Parsing and Computation Extend CSSNumericValue.parse() support for additional numeric value types
2051165 Toolchains Frequent launchpad timeouts during toolchain rebuilds
2051187 New Tab Page Focus Timer widget: make focus/break transition reliable (celebration completion not firing)
2051196 Themes Add a global [hidden] { display: none !important } rule instead of :not([hidden]) display guards
2051208 Graphics Fix gfx::SurfaceFormat in AndroidImageReader::UpdateTexImage()
2051276 DOM: Security Sanitizer: Update web-platform-tests
2051319 JavaScript Engine Add a comment spelling out that isNumberRepresentable returns false for NaN
2051321 Menu Remove the Menu CFR
2051335 Release Automation stop hardcoding channel and app name in update integrity test transform
2051348 New Tab Page Add deep-linking for Highlights
2051353 mozscreenshots Fix and re-enable the mozscreenshots screenshot jobs on Linux, Windows, and macOS
2051360 Accounts and Sync Scaffold a service-sync module
2051370 Form Autofill Autocomplete icons are a bit large
2051394 CSS Parsing and Computation Don't use Gecko-specific code for link parameters in parts of Stylo shared with Servo
2051398 Panning and Zooming wpt unrelated-gesture-scroll-during-snap.html failing
2051417 Agent [wdspec] Ignore leakcheck failures
2051437 Interventions Extend intervention to https://test-connectivity.riverside.fm
2051444 Widget: Gtk Request XDG activation token for launching the browser toolbox.
2051455 Layout Mark CSS2/stacking-context/opacity-change-twice-stacking-context.html as fuzzy expected pass
2051457 New Tab Page Sports widget - the "Now" tab missing live sub-state labels and live shootout score in the pill
2051460 Graphics: ImageLib move fuzz from implementation specific to the test in some jxl tests
2051478 JavaScript Engine Perma [tier2] PROCESS-CRASH | 0865530a-cc76-c42a-bb57-893d6369d24d | application crashed [@ operator bool] | /jpegxl/bitdepth-12bpc-reftest.html - single tracking bug
2051489 Homepage Home wallpaper is pushed up by the IME
2051490 PDF Viewer Update PDF.js to new version 25eae30e4e23b89457b9d5b3166e97f75eef488c from 2026-06-29 20:21:29
2051499 Machine Learning: Frontend Fix minor issues and inconsistencies in Smart Window strings
2051502 UI Tests Temporarily disable verifyTheSetAsDefaultBrowserOnboardingCardFunctionalityTest UI test
2051512 New Tab Page Sports widget - Remove "penalties" string from results match tile in when medium size
2051517 Debugger Cursor location in bottom toolbar jitters when selecting different line/columns
2051546 about:debugging Close icon for Network Location error message is too big
2051572 Privacy: Anti-Tracking Clear on shutdown exception permission migration should skip policy-set permissions
2051586 General Empty moz_log files if using the browser toolbox.
2051673 Debugger JS Tracer documentation has stray word "preference" in the name of the preference
2051684 New Tab Page Sports widget: display team.region (not team.key) for the team code under the flag
1971997 Networking: HTTP HTTP/2 and HTTP/3 should not reparse the headers.
1975760 Storage: Bucket File System Support Bucket File System (OPFS) in Private Browsing Mode (PBM)
1983057 General Android 14 DragAndDropTest Failures
1989436 Widget Intermittent MOZ_ASSERT(!sourceSession) [@ nsDragSessionProxy::InvokeDragSession] | single tracking bug
1991443 General Remove Rust Component Sentry error reporting on Android
2009328 DOM: Selection `Selection::Extend` may work with `RangeBoundary`s whose tree kinds are different
2012637 DOM: Selection Make `nsContentUtils::ComparePoints` do the right thing for flattened tree with adding `TreeKind`
2012797 DOM: Selection Assertion failure: mRef || aOffset == 0, at /builds/worker/workspace/obj-build/dist/include/mozilla/RangeBoundary.h:272
2014342 DOM: Core & HTML Make `nsContentUtils::ComparePointsWithIndices` a private method
2014344 DOM: Core & HTML `nsINode::IsSelected()` and `IsItemInRangeComparetor` should use `nsContentUtils::ComparePoints` and convert the points to the flattened tree if comparing within the flattened tree
2014345 DOM: Core & HTML Make `TestServicesDocument` use `nsContentUtils::ComparePoints`
2014622 DOM: Core & HTML `nsINode::GetFlattenedTreeParentNodeForSelection()` and `nsContentUtils::ComparePoints<TreeKind::FlatForSelection>()` work with nodes node in the flattened tree
2017105 Enterprise Policies Change binary tree of CombinedProviders to one single provider instance
2027919 UI Widgets info-bar style update
2027927 IP Protection [a11y] Keyboard operation: toggling Turn On/Off buttons is not possible while keeping the toggle focused
2033573 New Tab Page Privacy Notice at the bottom of New Tab page links to the wrong place (wrong fragment identifier)
2033816 Gecko Profiler Always gather thread CPU information (remove / ignore the "cpu" feature)
2034102 IP Protection Expose proxy protection state as a reusable API
2035985 Tooling Update Kotlin to version 2.4.0
2036418 Experimentation and Telemetry Add mobile messaging targeting and actions for notifications/marketing notifications
2036888 Shell Integration Return whether the user agreed to pin from pinToTaskbar, pinCurrentAppToTaskbar
2036938 Themes HCM tokens are incorrect for ghost buttons
2038834 Address Bar Quick Action for turning off AI Mode
2038835 Messaging System Add nimbusUpdate trigger
2039124 Disability Access APIs Enable tagged PDF generation on Nightly
2039812 Toolchains [clang-trunk] Perma DEBUG: | wasm-ld: error: cannot open crt1.o: No such file or directory
2039933 Settings UI Rename the root preferences head.js file
2041333 Tabs [Tab Groups Onboarding] Add animation
2041349 Tabs Implement Lottie for animation
2041699 Settings UI "Manage Colors..." button text in the Accessibility pane should be "Manage colors"
2044984 File Handling Removing an existing file before renaming .part file is not necessary
2045665 General Port module initialization in _delayedStartup to use category-manager invocation
2045820 Messaging System Allow support for customizable height for asrouter-newtab-multistage
2046991 DOM: Animation Investigate the new failure of /scroll-animations/scroll-timelines/scroll-timeline-snapshotting.html
2047549 Bookmarks & History Bookmarks for Google Apps use the root icon instead of the newly released one
2047567 General unclear error message "NS_ERROR_FAILURE: - ClearDataService.sys.mjs:2785:21"
2047639 Audio/Video: cubeb Update various cubeb-related crates and libraries
2047647 JavaScript: GC Make reads of GC data atomic under concurrent marking
2047951 Downloads Download dialog - file name shouldn't be highlighted when opening the dialog
2048368 Keyboard Navigation Add about:keyboard entry points to the Settings UI
2048599 General iconUrl of container icons exposed via contextualIdentities should have intrinsic width/height of 32x32 instead of 16x16
2048767 General Add "group" managetabs option to manageTabs tool
2048893 Console Browser Console: add separate "Browser" and "Content" filters to split product and web content messages
2049264 Graphics Remove dead MacIOSurface::CreateSinglePlanarSurface
2049426 Performance Extend speculation rules prefetch browsertime navigation tests to cover all eagerness levels
2049495 Firefox Accounts Authenticate FxA token requests with the auth-server Bearer scheme instead of Hawk
2049674 IP Protection LifecycleHelper is not reacting to Activity-Lifecycle events
2049931 Sidebar New sidebar: Bookmarks panel has incorrect accessibility label
2049995 Installer Permanent beta as esr153 browser/installer/windows/nsis/test/xpcshell/test_stub_installer.js | single tracking bug - please fix before 2026-07-03
2050032 Homepage [Longfox] LongFox animation is visibly retracting upon restoring the app from background
2050079 Contextual AI Disable S2S prompt in performance tests
2050143 Messaging System Add a new REMOVE_LAUNCH_ON_LOGIN message action
2050145 Messaging System Add `isLaunchOnLogin` targeting attribute
2050255 Sidebar Auto compact mode causes window.open to create too-large content areas for small popups
2050330 Address Bar [IPC Urlbar] Phase 3: Add UrlbarResult serialization for the actor boundary
2050399 Address Bar [IPC Urlbar] Phase 4: Make the Urlbar actor pair carry real messages
2050508 Form Autofill Focus outline remains on autocomplete row item when pointer leaves panel
2050692 Graphics: WebRender last character in channel names on Slack cut off
2050792 Layout: Scrolling and Overflow paged.html scroll-snap WPT can fail due to a 1px rounding false-negative in visiblePages()
2050816 Shell Integration Kit image for default browser intermittently bleeds out of the windows settings window
2050991 Settings UI On the Container settings page, the delete container button tooltip should be Delete instead of Remove
2051003 WebRTC: Signaling setRemoteDescription should reject codecs in 64 - 95
2051041 Downloads Downloads being deleted when "Remove from download history" option selected
2051216 CSS Parsing and Computation Extend CSSNumericValue.type() support to CSSMathProduct
2051218 IP Protection [Nova] VPN toolbar icon is dark black instead of matching the Nova theme when in Paused state
2051415 Networking: HTTP Assertion failure: !foundInPendingQ, at checkouts/gecko/netwerk/protocol/http/nsHttpConnectionMgr.cpp:4058
2051463 JavaScript Engine: JIT Perma jit [tier2] tests/jit-test/jit-test/tests/asm.js/bug1937654.js | [CodeCoverage] Setting handlers for process 24157. (code 3, args "") [0.2 s]
2051504 JavaScript Engine Consider passing options struct to simplify new object creation functions
2051541 Bookmarks Migrate ComposeView() to content {} in bookmarks fragments
2051543 Homepage Up button in top left has too small a touch target size
2051553 Searchfox Make rust-analyzer use the objdir's cargo config.
2051574 Data Sanitization Set both "cookie" allow exceptions and clear on shutdown exceptions for cookie enterprise policy
2051597 Security: PSM Bug 2046258 incomplete for Thunderbird
2051612 DOM: Core & HTML Perma TEST-UNEXPECTED-FAIL | dom/tests/mochitest/general/test_interfaces.html | CSSTranslate should be defined on window when Gecko 154 merges to Beta on 2026-07-20
2051661 Messaging System Update backup spotlight illustrations to Nova styles
2051664 Graphics Android bundled fonts are mistakenly not loaded when stored rather than deflated in omni.ja
2051667 CSS Parsing and Computation Share ElementContext logic with Servo
2051732 Search Remove unnecessary re-setting of the saved default search engine id if an add-on changes its name
2051734 Tooling Update AndroidX Lifecycle to version 2.11.0
2051736 New Tab Page Update locales for Firefox 152.0.4 train-hop
2051770 CSS Parsing and Computation Lots of errors when compiling Stylo for Servo since D308158
2051799 General Update android nightly application-services version bump to new version 52d3080bc655c81f833119d450c7052fbdc67885 from 2026-07-01 05:02:01
1251981 Menus Firefox menus and panels overlap Windows Taskbar
1291494 SVG Get rid of SimpleTextContextPaint
1848634 IPC Remove ipc/pull-chromium.py
1849907 Tabbed Browser Convert `selected` attribute to be standard boolean attribute
1943059 PDF Viewer Implement signature verification for pdf.js
1973014 DOM: Events Clicking on a link, etc. and loading a new page or menu is displayed as a click and that new page or menu opens (Example: YouTube video quality menu)
1992709 Networking open.spotify.com - Album and playlist covers missing in search results when logged in on desktop site using a tablet device
2019163 Address Bar Update icon spacing in urlbar quick actions for Nova
2019164 Address Bar Update chiclets in the urlbar view for Nova
2030415 Machine Learning: General Create a mochitest to assert security properties on chat initiation
2035411 Networking Add a warning to about:neterror when SSLKEYLOGFILE is in use
2035516 Privacy: Anti-Tracking Support WebCompat Excpetion for ContentClassifier Engine
2036103 Firefox View Remove Firefox View button for new users and non-users
2038577 Gecko Profiler tools/profiler/tests/xpcshell/test_feature_nativeallocations.js - Intermittent Hit MOZ_CRASH(Mutex ordering violation) at checkouts/gecko/js/src/threading/Mutex.cpp:X
2039379 Performance Engineering Update perfetto to new version v55.0 from 2026-05-13 15:01:05
2039487 IP Protection Site exclusion description alignment is slightly offset in the VPN main panel
2039633 Messaging System Allow messages to have multiple triggers
2040962 DOM: Editor EditContext text input UI positioning
2042339 DOM: Networking [LNA] Enable LNA Restrictions for Websockets
2043615 Add-ons Manager moz-promo for about:addons list extensions recommendations footer and empty state
2043758 Disability Access APIs CORE-AAM: Map aria-details for Mac AX API to AXDetailsElements
2044588 JavaScript Engine: JIT debug/ExecutionTracer-traced-values.js JIT test can fail with GC zeal enabled
2044696 Privacy: Anti-Tracking Add support for malicious addon protection
2046260 Graphics Implement AndroidImageReaderImage::BuildSurfaceDescriptorBuffer()
2046297 Search Update the legacy search bar border for Nova
2046879 Marionette Intermittent Android mozilla/tests/webdriver/classic/navigate_to/privileged_pages.py | test_inherit_principal_url_in_extension_process_context_without_system_access[javascript] - setup error: webdriver.error.NoSuchWindowException: no such window (404)
2047012 Address Bar [Nova] Urlbar input and search bar don't have borders/outlines in customize mode
2047618 Address Bar Consider updating the search bar text highlight and Clear button for Nova
2047650 JavaScript: GC Intermittent Assertion failure: pm->hasActiveTasks(lock), at checkouts/gecko/js/src/gc/ParallelMarking.cpp:X
2047962 AutoConfig (Mission Control Desktop) `browser.startup.homepage` with `data:text/plain,browser.startup.homepage=…")` incompatible since 152.0
2048395 Address Bar Nova URL bar focus ring covers tab group lines in the horizontal tab strip
2048473 JavaScript: GC Assertion failure: obj->asTenured().arena()->onDelayedMarkingList(), at gc/GC.cpp:3751
2048511 Address Bar Better manage generating Places embeddings on slower computers
2049138 Site Permissions Add "Keep history" permission to Page Info window
2049305 Tooling Try to be consistent with `allowMissingSdk()` in lint tests
2049401 JavaScript: GC Assertion failure: !chunk->stolenFromSweepList in [@ BufferAllocator::checkChunkGCStateNotInUse] after aborted GC
2049534 Networking: Cache avoid cachefile writes on cache hits
2049712 Form Autofill Dropdown arrow in the Credit Card Update doorhanger does not open any menu
2049982 Privacy: Anti-Tracking Introduce a pref to control URLClassifier for third-party loads
2050165 Performance nav-bench test on windows machine does not produce annotated videos
2050250 Privacy [A11Y] Consider making a tracker blocking dashboard item larger, also it may not have a label readable by screen readers
2050258 Privacy [A11Y] Talkback announces only "button" for the one that dismisses (hides) the tracker blocking dashboard
2050357 Agent [wdspec] Use a dedicated geckodriver instance for Mozilla-specific tests
2050409 Privacy TalkBack does not announce the turn on/off action
2050416 Privacy TalkBack does not announce the page title when navigating to VPN Settings from the browser menu
2050452 Privacy "Continue without VPN?" modal does not adapt to dark mode / private mode
2050524 UI Widgets Create a basic UI-only theme picker for use on various surfaces
2050670 Address Bar Update l10n strings for result explanations and expose them to localizers, version 2
2050734 Toolchains Upgrade clang 22 toolchain to 22.1.8
2050754 XPCOM Make toolkit/tests/gtest/TestXREAppDir.cpp app agnostic
2050849 Design System and Theming [WebCompat Reporter v3] The 'What’s not working?' list options don't match the order in Figma
2050880 Add-ons Manager Update openAmoInTab aboutaddons-utils.sys.mjs helper function to allow callers to set a custom utmContent value and to drop the unused element parameter
2050952 Mach Vendor & Updatebot Add a convenience flag to control filing behavior
2050967 Privacy [IPProtection] getAccessToken is getting called excessively
2050971 New Tab Page Add strings for the Picture of the Day widget
2051089 Enterprise Policies ExtensionSettings no longer work
2051304 Toolbar Add support for integrators specifying labels for toolbar buttons - useful in UI tests
2051404 Firefox Source Docs: Content Links in services/sync/rust-engines.html are broken
2051429 General Use moz-src for dom/manifest
2051431 Homepage [Homepage Sports Widget] Disable WorldCup Widget after a particular date
2051492 Top Sites Align the popular sites tile with the latest designs
2051493 Bookmarks & History missing spaces between bookmark tags when bookmark has more than 2 tags
2051557 Performance Tools (Profiler/Timeline) Improve UI of the profiler recording popup after Nova
2051746 Privacy [IPProtection] Onboarding card is immediately shown for debug builds
2051753 General Use moz-src for dom/privateattribution
2051776 Networking: HTTP MOZ_ASSERT(mState == State::Open) on late loser Finish0RTT after Cleanup
2051787 General Perma [tier 2] test-info subprocess.CalledProcessError: Command '['/builds/worker/fetches/node/bin/node', '/builds/worker/checkouts/gecko/testing/runtimes/fetch-manifest-data.js', '--output-dir', '/builds/worker/artifacts']' returned non-zero exit status
2051878 Firefox Perma WMC64 [tier 2] /builds/worker/checkouts/gecko/toolkit/components/contentanalysis/tests/gtest/TestContentAnalysisUtils.h:65:15: error: use of undeclared identifier 'WAIT_OBJECT_0'
2051928 Gecko Profiler Rust add_marker always take a global lock in get_or_insert_deserializer_tag
2051930 JavaScript: GC Try using non-atomic accesses to the cell header during tenuring
2051985 Searchfox Sync in-tree mozsearch Clang plugin with upstream
2052031 Tooling Pick up 2026-07-01 minor AndroidX dependency bumps
2052040 Settings UI Handle legacy object format for browser.backup.enabled_on.profiles in settings
2052049 MathML Only disable MathML preferences mathspace_names/legacy_mathvariant_attribute on Nightly (not early-beta)
2052057 Layout: Text and Fonts Only enable symmetrical CSS letter-spacing in Nightly
2052061 Layout Only enable dynamic reflow roots in Nightly (not early-beta anymore)
2052084 Graphics: ImageLib Keep lib{jpeg,webp}-config.mozbuild across vendoring
2052093 Audio/Video: Playback Enable the disabled fetch-canvas-tainting-video WPT tests
2052106 Inspector: Rules Add test for `progress()` support in `InspectorUtils.getComputationSteps`
2052112 JavaScript Engine [clang-22] Perma Assertion failure: contents.isAligned(byteLength), at /builds/worker/checkouts/gecko/js/src/vm/ArrayBufferObject.h:669
2052138 Networking: HTTP Set network.http.speculative-parallel-limit=20 for test_http3_alt_svc.js and test_http3.js
2052139 Layout: Text and Fonts Fix binary search algorithm misidentification in gfxFont
2052161 Mozbase Rust Crate depends on a vulnerable version of quick-xml.
1425832 Security: PSM Using Services.prompt from pippki.js breaks browser_loadPKCS11Module_ui - should use PromptTestUtils
1515780 DOM: Device Interfaces Consider more aggressively throttling deviceorientation events
1931009 Search Intermittent TV toolkit/components/search/tests/xpcshell/test_searchSuggest.js | fetch_twice_in_a_row - [fetch_twice_in_a_row : 342] 0 == 1
1975878 Translations In the settings, the menu to translate the site on load is set to appear, but the menu is not displayed
1999922 UI Tests Intermittent UI test failure - <TextSelectionTest. verifySelectAllPDFTextOptionTest>
2007074 Startup and Profile System Thunderbird creates an empty "thunderbird" folder in the home directory
2014220 Layout: Flexbox flex item ends up the wrong size, in situation with several nested flex containers (related to layout.flexbox.item-final-reflow-optimization.enabled)
2019946 Toolbar Top bar lacks "open new tab" button
2022527 Address Bar Remove the hack from bug 2007147
2023923 Machine Learning: Frontend We should show the Paste and Go option for the Smart bar
2024114 General Intermittent error: could not compile `gkrust` (lib)
2025163 Toolbar Crash when pasting really long URLs
2028142 CSS Parsing and Computation Container style queries that use `attr(...)` don't handle invalidation when the attribute is updated
2029183 UI Widgets Support neutral variant of moz-button
2030275 Alerts Service Intermittent toolkit/components/alerts/test/chrome/test_principal.html | single tracking bug - permafails under a combination of test groups
2032467 Enterprise Policies Cleanup onDownloadEnded when installing addons
2034445 Inspector Inspector causes crash (multiple concurrent fetch requests to retrieve the same stylesheet text)
2035622 New Tab Page Always show an add shortcut button for New Tab shortcuts
2036397 JavaScript: WebAssembly Fully validate canon lift/lower
2038072 Layout: Positioned Support absolutely positioned children of inline containing block across multi-columns
2042108 Privacy Private tabs screen lock setting disappeared on older android versions
2044344 Contextual AI Allow summarization to happen while page is still loading. Display loading screen until page loads then populate summary
2045935 Disability Access APIs blockquote reporting as AXSubrole "AXUnknown" not "Nil" in Mac Accessibility Inspector app
2046787 Menus Update profiles section of account menu with Nova changes
2046792 Menus Update tools section of account menu with Nova changes
2046932 History history search feature becomes inaccessible or invisible after user goes into a history group and back
2047114 Machine Learning: Frontend The Blur effect from the bottom of the AI Manage tabs tool call panel is missing
2048082 New Tab Page WorldCW - Celebration animation phase 2
2048342 Audio/Video: Playback Improve Media Foundation CDM protected-playback activation reliability for SL3000 (readiness gate, bounded recovery, telemetry)
2048554 Password Manager Add telemetry to login storage migrator
2049065 Performance restore chrom* linux tests missing from cron
2049329 DOM: Networking Write ORB HLS tests for media3 and make sure we pass them
2049713 Firefox Monitor Remove "0 trackers blocked" state from the Privacy Panel
2049764 Graphics: WebGPU Add `audit-as-crates-io = true` for naga-types when wgpu v30 releases
2049901 IP Protection Retry transient failures when getting a proxy pass
2050036 Form Autofill Using Application Service to store passport data
2050065 Inspector: Rules `sibling-count()` and `sibling-index()` are wrongfully substituted by `0` on pseudo elements in css explainers tooltip
2050523 Relay Firefox Relay Mask/Label Name Display Fixes
2050845 Audio/Video: Playback Audible split-MSE seeks resume much later than muted seeks in Firefox Nightly
2050875 Contextual AI Reducer and middleware for shake to summarize should use exhaustive whens
2050986 Privacy FxA goes into a bad state if user with a previously authorized Relay account tries to authorize VPN
2051204 Audio/Video Null deref in OggDemuxer::SetupMediaTracksInfo when an OggCodecState allocation fails (Coverity CID 1364678)
2051206 Security: Process Sandboxing unlink/unlinkat sandbox syscall traps crash on a null path argument (Coverity CID 1678881, 1679420)
2051207 Audio/Video Undefined shift in AudioConfig::ChannelLayout::Map for out-of-range channel index (Coverity CID 1512893)
2051247 Style Editor Content of stylesheet is not correct when the file has a network override
2051288 App Links Applinks crash when handling a very large URL
2051295 App Links Compose autofill crash when editing a very large URL
2051336 Release Automation run update integrity tests on devedition
2051369 Experimentation and Telemetry Add deeplink to privacy report
2051443 Graphics: WebGPU Hit MOZ_CRASH(called `Result::unwrap()` on an `Err` value: TryFromSliceError(())) at gfx/wgpu_bindings/src/server.rs:2747
2051473 Theme Also let the autocomplete panel use content's preferred color scheme
2051591 Source Documentation Match output of document upload tasks to format that reviewbot requires
2051703 Menus Use --button-background-color-menu variables for the app menu instead of --button-background-color-ghost variables.
2051721 Keyboard Navigation Align new key input field and its label on about:keyboard
2051858 Machine Learning: Frontend Smart Window sidebar jumps instead of sliding in while the left sidebar is open
2051882 JavaScript: GC Improve scheduling behaviour for concurrent marking
2051885 General Customize toolbar panel styling enhancements for nova
2051902 DOM: Security Audit usage of EARLY_BETA_OR_EARLIER and use just Nightly or Nightly & Beta
2051906 Experimentation and Telemetry Remove custom-review-prompt flag from Nimbus and the review prompt trigger criteria it controlled
2051922 DOM: Security Remove security.csp.truncate_blocked_uri_for_frame_navigations pref
2051941 Menu Blue dot indicator is shown in the browser menu even though the associated set-to-default banner is only shown from the homepage.
2051945 Audio/Video: Playback Unbounded loop in ReenqueueUnplayedAudioDataIfNeeded intermittently leads to OOM
2052020 Tabs [Tab Groups Onboarding] Grid view card on different screen sizes
2052128 New Tab Page sports widget: soccer/football world championship widget displays wrong if goals scored in extra time (counted twice)
2052156 Experimentation and Telemetry Remove unused TWO_DAYS_MS constant from Settings.kt
2052165 PDF Viewer Update PDF.js to new version 43c29379de6bc5c875e0ae589f7eca8e9ae43f5c from 2026-07-02 10:30:10
2052196 Agent [wdspec] Ignore leakcheck failures (take two)
2052200 DOM: Navigation Convert some potentially problematic log strings inside nsSHistory.cpp to UTF-8 instead of ASCII
2052201 JavaScript Engine jit-test harness expected-error check is broken
2052212 Toolbar Don't show the summarize toolbar shortcut as an option when no shortcut is currently selected
2052215 JavaScript Engine Fix some test issues for Linux32 ASan builds
2052230 UI Tests Intermittent org.mozilla.fenix.ui.efficiency.tests.SettingsDeleteBrowsingDataOnQuitTest#deleteDownloadsOnQuitTest | java.lang.AssertionError: Failed to click UiObject for selector: Page content 'smallZip.zip'
2052283 Task Configuration Update mozilla-taskgraph to v4.3.0
2052301 Performance Use a nightly-as-release profile when building linux nightly-as-release
2052303 Tooling Update some miscellaneous Gradle dependencies
2052371 New Tab Page World Cup Widget: Two varieties for Survey Message STRINGS
2052391 Graphics: WebRender Align tile-invalidation quantize with the rasterizer's pixel rounding
2052394 DOM: Editor Assertion failure: IsForDesignMode(), at checkouts/gecko/dom/events/IMEContentObserver.cpp:252
2052400 General [DevTools Release Tasks - Cycle 154] Remove backward compatibility code
2052436 General Update android nightly application-services version bump to new version 8341edd91f3413a87ae304047b8fa96066b32f0b from 2026-07-03 05:02:25
2052485 Graphics For ScaleYCbCrToRGB32, only use the deprecated path if there is asm for it so it's actually faster
1842361 Downloads Download confirmation notification can be overlaid over other origins.
1907555 General Use a list representation when passing CC, CXX and the likes from moz.configure to the build system
1927457 Sidebar Fullscreen mode (F11) does not hide the sidebar tools or vertical tabs on Windows and Linux
1965053 General Warning spam from abseil numbers.cc
2025868 Address Bar Show history when in search mode
2027850 Machine Learning: Frontend Manual Smart bar intent Configuration
2032219 Inspector: Rules Strengthen the focus-restoring logic in the rule view
2035562 Firefox Source Docs: Content Markdown link to `position` is broken
2036376 Debugger Handle sourcemapped CSS files in the debugger
2037041 Debugger Display the at-rules contained in a stylesheet
2040756 Sidebar Add search input to new sidebar open tabs panel
2041382 Sidebar Update the current font size in sidebar panels to font:menu
2042691 IP Protection [a11y] Unavailable locations are completely skipped by keyboard navigation and screen readers
2042698 General Remove some Preferences.sys.mjs APIs that are only used in test code or not at all
2042886 Performance Tools (Profiler/Timeline) Align Networking logging presets across Firefox Profiler and about:logging
2043221 Networking Cap UDPSockets per-content process
2045156 Machine Learning: Frontend Smart Window ai-chat-card to moz-card updates
2046575 Search Local search shortcuts disabled in the old preferences will not appear in Search Mode Switcher
2046707 New Tab Page newtab thumbnails are downloaded as 296px wide and stretched to 298.133px (nova)
2047321 Audio/Video Don't let a tab's media start or resume while its audio session is interrupted
2047525 Debugger The Outline list should support RTL
2048229 Password Manager Make passwordmgr unit tests pass against Rust storage backend
2048231 MFBT thunderbird 152 crashes at startup on OpenBSD, in the profiler initialization code due to fallback TLS implementation returning random garbage
2048371 Private Browsing Update some colors in the nova private window theme
2048727 Security: PSM Frequent security/manager/ssl/tests/unit/test_sss_sanitizeOnShutdown_v2.js | single tracking bug
2048907 UI Widgets Nova style changes for Find in Page
2048953 SVG Perma TEST-UNEXPECTED-FAIL | /svg/styling/css-linked-parameters/img-with-linked-parameters-1.html | Testing http://web-platform.test:8000/svg/styling/css-linked-parameters/img-with-linked-parameters-1.html when Gecko 154 merges to Beta on 2026-07-20
2049331 Settings UI Tracking Protection is not deactivated for private window.
2049332 UI Tests Migrate verifyTheTranslatePageSubMenuOptionTest UI test to the efficiency framework
2049452 UI Widgets Add a vertical mode for visual picker
2049464 DOM: Editor Enable spellcheck for DOM-based EditContext
2049877 Preferences Build UI to control the browser icon in Settings
2050000 Settings UI Social media trackers are not blocked in the normal window if Tracking content is set to all windows with the new settings redesign
2050118 New Tab Page Add a utility flag to `./mach newtab trainhop-recipe` to make it easier to populate our tracking table with entries
2050312 New Tab Page Fix OFF timing of Widget resizing via Widget Header
2050314 Privacy FxaAccountManager actions should not be able to change IPProtection entitlement
2050315 Privacy Add unit test coverage for core IPProtection components
2050612 Theme Update design-system tokens test so that it matches buildtokens
2050684 Address Bar Updates to AMP suggestions for conquest ads
2050749 Settings UI Redesigned ETP Custom UI does not force a tracker list update when toggling cryptominer/fingerprinter blocking
2050750 Settings UI Redesigned ETP Custom UI no longer records privacy.ui.fpp.click telemetry for the suspect-fingerprinting controls
2050760 Settings UI [Nova] "Add" button is stuck to the "Address of website" input field in Manage websites settings from about:preferences#privacy page
2050983 UI Widgets moz-button type=ghost is missing a border in prefers-contrast for Nova
2051271 Privacy: Anti-Tracking Reduce the amount of requestLongerTimeout in antitracking mochitest
2051377 WebRTC Update vendored abseil-cpp to chromium third_party ce7a5981f82
2051420 New Tab Page Initialize the MozAdsClient singleton in New Tab behind a feature flag
2051421 DOM: Editor Empty text node in DOM-based EditContext host is removed
2051435 Address Bar [IPC Urlbar] Phase 5: Split TelemetryEvent and carry it over the actor boundary
2051485 JavaScript Engine: JIT Improve address calculations in riscv64
2051511 Networking Lower Happy Eyeballs resolution delay to 25ms
2051528 JavaScript: WebAssembly Improve riscv64 codegen for LWasm(CompareAnd)Select
2051547 about:debugging Improve error and warning messages colors for dark mode in about:debugging
2051590 Themes Non-native `menulist` element doesn't have a border or a background in Nova, which makes it difficult to see
2051600 JavaScript Engine: JIT Handle optional store to save instance pointer in riscv64 codegen tests
2051908 Agent ProgressListener prematurely stops navigation on subframe location changes
2052009 Machine Learning: Frontend Hard-coded content in onboarding for Smart Window
2052026 DOM: Selection Crash in [@ nsINode::IsMaybeSelected]
2052066 Address Bar Update the border radius of 28px icons to make them less round
2052081 Address Bar Support ampTopPickUseNovaIconSize in Nova
2052092 Layout Fix -Wimplicit-int-enum-cast warnings in layout
2052098 CSS Parsing and Computation Wrong spec links for recent CSS preferences
2052117 Inspector: Rules Stop calling onRuleUpdated twice for "not authored" rule codepath
2052127 Address Bar Remove observer service usage in unified search panel
2052140 Form Autofill Update address autofil ML config
2052145 Password Manager Primary Password support for Login Storage Migrator
2052311 Security: PSM Update NSS to new version 9cd244e1a10de8260eafd83d535be46f2b0349d1 from 2026-07-02 18:21:10
2052341 Graphics: WebRender Hit MOZ_CRASH(attempt to subtract with overflow) at /builds/worker/checkouts/gecko/third_party/rust/euclid/src/point.rs:611
2052350 Stories Add a Nimbus flag for enabling the Mozilla Ads Client for Sponsored Stories
2052353 Top Sites Clean up the old MARS code for Sponsored Top Sites
2052398 Tooling Compile with Android SDK 37.1 (QPR1)
2052448 DOM: Networking Remove nsContentUtils::AnonymizeURI
2052463 General Skip devtools tests frequently failing on macOS 15 AArch64
2052465 PDF Viewer Update PDF.js to new version 0cc1718b027c26f0c813086ace285426673d5d81 from 2026-07-03 08:21:11
2052491 CSS Parsing and Computation Frequent /css/selectors/active-observable.html | Clicked element no longer matches :active within its click listener - Test timed out | single tracking bug
2052493 Netmonitor Remove the initializer code allows the Netmonitor be opened in a tab
2052502 DOM: Device Interfaces Out-of-bounds read in LinuxGamepadService::OnGamepadData from KEY_MAX vs KEY_CNT array sizing
2052521 IP Protection IP-Protection: remove IPPFxaAuthProvider
2052528 Graphics: WebRender Metal ANGLE cannot draw a single vertex/instance if attribute size is not aligned to 4 bytes
2052531 Task Configuration rename "shipping-product" attribute
2052550 Task Configuration replace test_apk transforms with task_context
2052554 Address Bar Make global-action (ActionsResult) results serializable for the urlbar actor boundary
2052563 Networking: HTTP Set network.http.speculative-parallel-limit=20 for test_http3_421.js.
2052637 Layout: Form Controls Pressing Page Up or Page Down keys does nothing when the textarea is not overflowing and the page is scrollable
2052643 DOM: Bindings (WebIDL) WebIDL dictionary codegen emits uninitialized scalar members (Coverity, ~235 CIDs)
2052644 DOM: Bindings (WebIDL) WebIDL bindings codegen: copy that could be a move (Coverity, ~193 CIDs)
2052648 Machine Learning: On Device LlamaRunner double-closes the model file handle, causing EXCEPTION_INVALID_HANDLE crashes in browser_ml_native on Windows
2052742 Firefox Source Docs: Content Broken link on devtools/index
2052787 Address Bar [IPC Urlbar] Phase 4: Complete the message-path controller-proxy stand-in
2052798 DOM: Service Workers Make asserts in VerifyClientPrincipalInfosMatch more granular
2052813 DOM: Service Workers Fix spelling of VerifyCientPrincipalInfosMatch
2052855 CSS Parsing and Computation Avoid double-adding relative selector dependencies.
1792669 Search Turning on the separate private browsing search engine UI gives the private default as the application default
1849790 DOM: Events Stop setting ill-formed UTF-16 to `KeyboardEvent.key` and `InputEvent.data` when typing a surrogate pair in release builds
1850539 Inspector Inspecting a svg document no highlighting and no inspector tooltips
1931090 Panning and Zooming YouTube chat sidebar can become stuck when scrolling
1994863 General Make ScrollPositionUpdate use a private constructor
2017966 Privacy Remove toggleablePromptListener from FenixEmailMaskPrompt
2019492 Settings UI After bug 1972076, Applications list in Settings has suboptimal keyboard and screen reader accessibility
2019789 New Tab Page `./mach newtab install` crashes on Windows with WinError 193 - ./mach cannot be spawned as a Win32 process.
2020715 DOM: Core & HTML Implement #inner-consider-speculative-loads-steps
2023350 Sidebar Vertical tabs Expand sidebar on hover eventually stays in expanded state
2024975 Machine Learning: Frontend Smartbar autocomplete highlighting flickers on input
2029352 DOM: Web Serial Pass in SerialPlatformService to SerialManager
2034907 Panning and Zooming Intermittent Assertion failure: IsRootContent() || relativeOffset == CSSPoint(), at checkouts/gecko/gfx/layers/FrameMetrics.cpp:X
2039582 Onboarding Microsurvey prompt closes when a new tab is opened
2042097 Places Add fetchBookmarksByURLs helper using array binding
2042589 WebRTC: Signaling WebRTC signaling and stats fixes to enable FaceTime calls to connect and Video to work
2043567 General `./mach busted file` gives a confusing message
2044535 Audio/Video Perma macOS 15 AArch64 Shippable MediaDataEncoderTest.H264EncodeBatch4KAnnexBRealtime | Expected: (GetKeyFrameCount(output)) >= (r.mInputKeyframes), actual: 3 vs 4
2046681 Tabs Tab strip gradient should fill the status bar
2046741 Site Reports mylabmastering.pearson.com - Firefox is not a supported browser on Android
2046937 Tooling & Investigations Report Broken Site > Something Else > Send more info button discards submission
2047871 Inspector: Rules Unable to calculate contrast information for relative color with sibling-index() computation
2048278 Shared Components Investigate using `field-sizing: content` to replace auto-sizing in InplaceEditor
2048988 General Add a `mach file-info reviewers` subcommand to suggest reviewers for files
2049272 UI Tests verifyNavigationReachability[2: UnifiedTrustPanelPage (TBD) — Navigation Reachability}
2049348 Performance Tools (Profiler/Timeline) Use Nova styles in Performance panel in about:debugging
2049494 Shell Integration Windows launch-on-login can silently re-enable itself on later startups for existing users (first-run enable gate is not durable)
2049641 Site Reports las.cnas.org.cn - Firefox is not a supported browser
2049695 Tooling Fix ktlint report path in android-lint tasks
2049969 Mach Core `mach try fuzzy --preset foo` fails with an exception
2050059 Picture-in-Picture udemy.com - Play/Pause controls do not work in PiP mode
2050140 Messaging System Add new action-only message type in messaging system
2050622 DOM: Editor Handle ContentCommandReplaceText for EditContext
2050753 Search Google Lens doesn't provide any results in private mode
2050794 Widget: Cocoa macOS Secure Event Input can be left enabled, locking out other apps (Logitech Options, TextExpander, 1Password)
2050877 XPConnect Simplify nsXPTConstantInfo::JSValue()
2050943 Machine Learning: Frontend The Restore Session is unavailable if Smart Window is set as the default Window
2050950 Mach Core [mozversioncontrol] various fixes and improvements
2051129 CSS Parsing and Computation CSS mask shorthand rejects 3-value position before mask-size slash
2051326 Video/Audio Controls media controls for `<audio>` & `<video>` do not update when JavaScript is used to mute/unmute
2051450 New Tab Page Make the wallpaper feature highlight CTA deep-link category configurable via OMC message content
2051501 Site Reports community.acer.com - List of supported models is not fully visible when expanded
2051521 Site Reports theloungenails.com - Firefox is not a supported browser
2051524 Machine Learning: Frontend The Web Content rounded borders are visible during Smart Window Onboarding
2051614 Networking: HTTP Happy Eyeballs doesn't fall back to native DNS when TRR-resolved addresses all fail to connect
2051710 Search [Google Lens] Replace video camera icon with still camera icon
2051778 Machine Learning: General Add support for French specific intent model for Smart Window
2051856 General 15.33 - 2.69% build times + 1 more (OSX) regression on Wed June 24 2026
2051876 Debugger Add the stylesheet in debugger feature to Experimental section to the settings panel
2051888 Widget: Win32 Windows drag data collection COM object type confusion
2052056 Widget: Cocoa New Private Window option appears in top Menu Bar -> File on macOS when PrivateBrowsingModeAvailability is set to 1
2052109 Graphics: WebGPU wgpu update 2026-07-02
2052142 Mozbase Rust Upgrade plist to 1.10.0 to fix vulnerable version of quick-xml
2052176 Style Editor Automatically detect local stylesheet file when using Local Mode
2052183 UI Tests Migrate verifyTheAddToShortcutsSubMenuOptionTest UI test to the efficiency framework
2052237 Audio/Video Bug 2044499 (Add HW support plumbing to RemoteDecoderModule::Supports) breaks geforcenow.com
2052248 Nimbus Desktop Client Support re-enrolling in ended rollouts
2052318 Task Configuration Use copy_attributes_from_dependent_job from mozilla_taskgraph
2052329 General improve task selection and setup of nightly-build-tasks action on try
2052386 Audio/Video Extract a shared ScopedPrefSetter helper for gtests
2052414 Disability Access APIs Don't create platform (OS specific) accessibility objects for print documents
2052459 Framework Add moz_log for tab descriptor navigateTo helper
2052506 IPC Make all ValidatePrincipalOptions optional
2052508 Source Code Analysis Activate clang-tidy's modernize-use-transparent-functors check
2052522 Graphics Support binding IOSurfaces to textures on ANGLE/EGL for webrender
2052551 Graphics Use std::midpoint to compute mean between integers
2052558 Machine Learning: Frontend Classic/Smart window switcher icon is blurry with horizontal tabs
2052570 DOM: Core & HTML Assertion failure: false (MOZ_ASSERT_UNREACHABLE: Child is not actually a child of parent), at checkouts/gecko/dom/base/nsINode.cpp:419
2052599 Privacy [IPProtection] Onboarding card flow is broken for already authenticated users
2052609 Graphics: WebRender Hit MOZ_CRASH(index out of bounds: the len is 7 but the index is 4294967295) at gfx/wr/webrender/src/prepare.rs:1473
2052610 General Use moz-src for intl/locale
2052666 Source Documentation docs: complete the rst => md migration!
2052740 General Migrate various modules to moz-src
2052743 Messaging System Make newtab feature callout styles match Nova newtab theme
2052753 Audio/Video: cubeb Update libcubeb and cubeb-pulse-rs to latest upstream revisions
2052759 Panning and Zooming Try to find the neareast scroll ID rather than the nearest scroll container for fast-path apz-aware notification
2052790 Tooling Update targetsdk to 37 for all apps and components.
2052794 Networking: HTTP Transient DNS failure sticks across reload under Happy Eyeballs
2052815 Containers Add New Container dialog not centered in browser window
2052837 Site Reports bahn.de - The login page is blank
2052840 Experimentation and Telemetry Uninstall survey is displayed immediately after microsurvey is enabled
2052857 Disability Access APIs Remove redundant null check in LocalAccessible::BindToParent (Coverity CID 1473402)
2052866 JavaScript Engine Merge identical --wasm-compiler= cases in SetContextWasmOptions
2052874 DOM: Editor Add use counter for canvas- vs DOM-based EditContext
2052894 Graphics Webrender on Metal ANGLE crashes due to incorrect context type when attempting to migrate GPUs
2052895 Source Code Analysis Use C++20 in static-analysis autotest
2052900 Search [Google Lens] Switch compression quality to match Google spec
2052908 Networking: Cache nsHttpChannel waits forever in `AwaitingCacheCallbacks`
2052947 Machine Learning: Frontend Fix en-US typo in smart-window-cancelled-label (non-US "cancelled" to "canceled")
2052966 Privacy [IPProtection] Add tests for onboarding flow fix
2052992 Lint and Formatting Don't run 'Android Gradle Build python tests' when linting
2053032 General The "Settings" menu cannot be entirely scrolled in landscape mode - the "Mozilla" section is not displayed at all
2053036 Documentation [devtools-docs] Fix typos etc. in Local Mode docs
2053071 Style Editor Perma a11y-checks devtools/client/styleeditor/test/browser_styleeditor_local_mode.js | Node is not accessible via accessibility API: id: , tagName: label, className: stylesheet-saveButton | single tracking bug
1363779 WebRTC: Audio/Video failing to open a video camera with getUserMedia should result in NotReadableError
1642147 DOM: Core & HTML preventDefault does not work for unhandledrejection event
1685123 General implement manifest sandbox support
1765851 WebRTC: Signaling Populate RTCRtpParameters.headerExtensions
1800148 General Add a test to make sure that about:support works
1883976 Audio/Video: Playback Intermittent dom/media/test/browser/browser_glean_first_frame_loaded_time.js | single tracking bug
1944240 DOM: Workers Adapting DevTool WorkerDebugger with RemoteWorkerDebugger mechanism in the parent process
1956304 DOM: Copy & Paste and Drag & Drop Clipboard: support web custom format on Desktop
1966584 Enterprise Policies First click on external protocol not working
1996675 Top Sites Update shortcuts (top sites) telemetry with "source" string to specify whether the interaction originated from the homepage or the shortcuts library
2000975 WebRTC: Signaling getStats should provide outbound-rtp stats immediately on completion of offer/answer
2008931 DOM: Serializers Get rid of dom.serializer.includeCommonAncestor.enabled
2015106 Machine Learning: Frontend The Assistant Sidebar should have a minimum width when resized
2019160 Address Bar Update favicon badges in the urlbar view for Nova
2019387 WebRTC Fix bad setCodecPreferences call in webrtc/protocol/additional-codecs.html
2021034 IP Protection Document bandwidth usage display logic in IP Protection
2022986 Theme Update panelUI-shared.css so it passes use-design-tokens
2027876 UI Widgets moz-card style update
2028904 IP Protection Remove custom font sizing from all VPN elements besides status
2029498 Performance Monitoring Frequent mochitest standalone browser/base/content/test/performance/browser_preferences_usage.js | open_10_tabs - Should have accessed all known problematic prefs. Remaining: browser.tabs.remote.logSwitchTiming - Got 1, expected +0 | single tracking bug
2031718 Tabbed Browser Update tab context menu behind the pref in Nightly
2032149 General Write script to install Firefox across all packaging formats, channels, and locales on Linux
2039690 Layout: Form Controls Firefox selects button-text when you click-and-drag inside of buttons (if they have 'user-select:auto')
2040992 Android Studio and Gradle Integration A full build happens when build is called twice
2041626 Address Bar Intermittent PROCESS-CRASH | Shutdown hanging at step AppShutdownConfirmed. ... [@ mozilla::(anonymous namespace)::RunWatchdog] | browser/components/urlbar/tests/browser-quickactions/browser_translate.js (finished) | single tracking bug
2042073 Memory Allocator Experiment with a 2MB chunk size.
2043333 Stories Add telemetry for stories in stories screen
2043430 Machine Learning: On Device [LinkPreview] Unhandled malformed UTF8 sequence on previews containing Chinese characters
2043579 WebRTC Update libdrm to new version 35c7c536d5d1c0124a416a531df4432508d7d2f1
2044167 JavaScript: Debugger API Remove Debugger.onPromiseSettled
2044781 Bootstrap Configuration Perma Boot [tier 2] opensuse-tumbleweed subprocess.CalledProcessError: Command '['zypper', '-n', 'install', 'bash', 'findutils', 'gzip', 'make', 'perl', 'tar', 'unzip', 'awk']' returned non-zero exit status 4.
2046045 New Tab Page Make "Hide widget" consistent
2046554 Enterprise Policies Search engines can no longer be "Remove"-d via policy
2046556 Experimentation and Telemetry [Telemetry] Add telemetry to send the status of features at startup or page render or when Nimbus reports
2046942 Themes Make sure urlbar and tab Nova files are syncing with Figma
2047329 Audio/Video: Playback DOM Media - Share VkDevice across Vulkan video decoders to fix multi-stream stalls and delays
2047558 Machine Learning: Frontend The History grid view is truncated when overlapping the Smart bar
2048103 WebRTC: Signaling Populate RTCRtpParameters.rtcp for RTCRtpReceiver
2048985 Bootstrap Configuration Perma bootstrap opensuse [taskcluster:error] exit status 104
2049386 Machine Learning: General Add Memories Enrichment Fields to Generation Output
2049616 CSS Parsing and Computation Style query fails if custom property is set with contrast-color
2050179 WebRTC Perma TEST-UNEXPECTED-TIMEOUT | /webrtc/RTCPeerConnection-videoDetectorTest.html | Signal detector detects track change within reasonable time - Test timed out when Gecko 154 merges to Beta on 2026-07-20
2050446 Private Browsing [Nova] PBM newtab favicon does not match Figma spec
2050812 Downloads In Downloads rename dialog, removing the extension should show the extension change warning
2051021 Layout: Text and Fonts Fontconfig 2.18 regression breaks font matching for fonts with special characters (-:,)
2051267 DOM: Editor [EditContext] Crash when pressing Backspace during an active IME composition in gdoc
2051566 UI Tests Migrate verifyTheAddToHomeScreenSubMenuOptionTest UI test to the efficiency framework
2051625 PopupNotifications and Notification Bars Perma TEST-UNEXPECTED-FAIL | browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_download_timer.js | This test exceeded the timeout threshold. It should be rewritten when Gecko 154 merges to Beta on 2026-07-20
2051714 Machine Learning: General Add fr-FR Sensitive Content Filters for Memory Generation
2051877 Storage: Bucket File System Perma [tier 2] ../../../../checkouts/gecko/dom/quota/EncryptedRandomAccessStream.h:224:54: error: invalid declarator before 'aStream'
2051988 Web Audio Perma TEST-UNEXPECTED-PASS | /webaudio/the-audio-api/the-audiocontext-interface/audiocontext-sinkid-state-change.https.html | Calling setSinkId() on a suspended AudioContext should fire only sink change events. - expected FAIL
2051998 Messaging System Perma TEST-UNEXPECTED-FAIL | browser/components/asrouter/tests/browser/browser_asrouter_targeting.js | check_backupsInfo - Should return structured backup info from when Gecko 154 merges to Beta on 2026-07-20
2052004 IPC Update libevent to version 2.1.13
2052007 IP Protection Add property to country object for premium locations
2052116 js-ctypes [clang-22] Perma /builds/worker/checkouts/gecko/js/src/ctypes/libffi/src/dlmalloc.c(1956,45): error: incompatible pointer types passing 'int *' to parameter of type 'volatile long *' [-Wincompatible-pointer-types]
2052130 Add-ons Manager Extension dialog headers are oversized
2052172 Firefox Upstream enterprise policy metadata into m-c
2052316 Sidebar Firefox sidebar (in its compact form) has a half-pixel-sized width, which forces web content to have a half-pixel-sized width
2052373 New Tab Page World Cup Widget: Two varieties for Survey Message
2052383 Marionette Intermittent Android mozilla/tests/webdriver/classic/navigate_to/privileged_pages.py | <test-name> - setup error: ConnectionRefusedError: [Errno 111] Connection refused
2052410 DOM: Device Interfaces Don't fire deviceorientation event if values are small change
2052441 Toolchains lld-link: error: undefined symbol: private: virtual void __cdecl clang::PluginASTAction::anchor(void)
2052456 General Build stalls while building cocoabind with clang 22
2052611 General Use moz-src for dom/system
2052652 Form Autofill Perma TEST-UNEXPECTED-FAIL | browser/extensions/formautofill/test/browser/address/browser_address_autofill_nimbus.js | test_address_autofill_feature_disabled - Address autofill shouldn't be when Gecko 154 merges to Beta on 2026-07-20
2052681 Stories Clean up legacy Pocket code
2052829 CSS Parsing and Computation Extend CSSNumericValue.type() support to remaining CSSMathValue subclasses
2052893 Source Code Analysis Activate clang-tidy's modernize-use-std-numbers check
2052968 Form Autofill Remove assigned version for ML autofill
2053037 MFBT WeakPtr: Documentation about overhead is misleading
2053044 Password Manager Rust logins removal API does not emit event
2053050 JavaScript Engine Merge more syntax/AST/Reflect.parse changes from source phase imports into existing ones
2053060 Containers Enable containers by default in release
2053061 General Document local mode preferences
2053062 General Use moz-src for browser/components/contentsharing/moz.build
2053067 Graphics: CanvasWebGL Hook up blocklist and prefs for WebGL on Metal ANGLE
2053093 General The "Learn more" from the access permission prompt is barely visible
2053113 Bootstrap Configuration Figure out if opensuse-tumbleweed bootstrap requires awk anymore
2053154 Build Documentation Hint at what to do to build on an Windows on ARM machine
2053177 Widget: Cocoa nsIFilePicker invokes callback before another modal can be safely launched
2053181 Tabs [Tab Groups Onboarding] Enable by default
2053192 CSS Parsing and Computation Upstream Stylo changes from Servo (Jun 2026)
2053196 Tabs Update the Tab Group colors with the latest from Nova Design spec
2053199 Layout Add basic layout module instructions for agents and expand layout debugger document
2053211 DOM: Core & HTML Simplify Pre/PostIdMaybeChange
2053214 PDF Viewer Update PDF.js to new version 8bc2fe68e5691d1f0ec608da38937716fd767fc6 from 2026-07-07 18:10:12
2053231 Task Configuration Update mozilla-taskgraph to v4.4.0
2053246 New Tab Page Update locales for Firefox 152.0.5 train-hop
2053251 New Tab Page Newtab add new pin button is creating new rows if grouped pins is off
2053263 Graphics: Color Management [HDR/Windows] Memory leak when playing HDR video
2053342 DOM: Security Also ignore resource documents in AssertChromePageHasCSP
1710940 General Crash event is not sent in isolated process
1782001 Graphics: WebRender Crash in [@ core::option::expect_failed | webrender::clip::ClipTreeBuilder::build_clip_set]
1783779 Graphics: WebRender With Webrender, strike through disappears at certain level of scale
1813848 WebRTC: Signaling Pay attention to RTCRtpParameters.active for audio
1988590 Storage: Quota Manager QM: Clear origins with zero usage after initialization
1990934 Messaging System [Feature] Allow MultiSelect tiles to render based on targeting
1997480 Audio/Video Crash in [@ moz_wasm2c_memgrow_failed]
2036124 Session Restore Open about:newtab or default start page by default on restore
2037813 Networking: Proxy Cookies not being sent with HTTP/2 WebSocket requests
2039292 Address Bar Convert urlbar result menu to use panel-list instead of menupopup
2043211 WebRTC Clean up webrtc getCapabilities pref usage
2044639 Graphics: CanvasWebGL Clarify mismatch between spec and CTS for WEBGL_compressed_texture_pvrtc
2045120 Layout Implement deferred `UpdateAnimationsTasks::CSSAnimations` task on animation target elements on scroll/view timelines change
2046221 DOM: Notifications Add telemetries for notification interaction
2046385 XPCOM nsID::Parse (Components.ID) does not reject junk past the UUID input
2046512 Machine Learning: Frontend Smart Window history grid db updates to enable restore
2047025 Machine Learning: On Device Create reproducible smoke tests for running llama.cpp locally and in CI
2047814 Security: RLBox Correctly name rlbox memory on 64-bit paths for the hunspell sandbox
2048435 Settings Remove the Quick Settings Dialog Fragment
2048544 about:debugging Use moz-page-nav in about:debugging
2048572 Enterprise Policies Move enterprise policies helper functions from browser/ to a shared toolkit/components/enterprisepolicies/PoliciesHelpers.sys.mjs
2048986 DOM: Editor Positioning of selection and control bounds for EditContext
2049050 General [WebCompat Reporter] Use getBrokenSiteReport instead of getWebCompatInfo on Android
2049182 XUL Simplify XUL label/description[value] rendering and use clientWidth/scrollWidth to detect cropping for the bookmarks/history tooltip
2049489 New Tab Page Render the Daily Crossword in a sandboxed iframe
2049645 CSS Parsing and Computation [css-color] Update color-mix() serialization to match spec
2049720 Widget: Gtk [GTK] text/plain is missing from dataTransfer.types when dropping content from an external application
2050002 Widget: Cocoa Download files (extensions are removed) 153.0b3 (64-bit) mac version
2050288 Top Sites Add telemetry for the Add Shortcuts dialog
2050378 Address Bar Picking a url from the list of results should clear any related autofill backspace counter
2050384 Networking: HTTP Website di.fm does not load when network.http.happy_eyeballs_enabled=true
2050415 DOM: Window and Location After window reload, old window's child iframe's `window.parent` refers to new window
2050538 Storage: localStorage & sessionStorage Test and infrastructure changes to run localstorage tests in Private Browsing Mode.
2050701 Messaging System Render Nimbus-configured copy/logo in the Web Notifications consent prompt (PermissionUI)
2050813 Networking: HTTP Add Happy Eyeballs v3 live-site performance tests recording HTTP protocol version and connection time
2050907 UI Widgets Allow moz-page-nav collapsing to be disabled
2051117 Crash Reporting Perma [tier 2] sys-symbols-fedora Log parsing was skipped since the log exceeds the size limit.
2051282 WebRTC Webrtc H264 telemetry is no longer recorded
2051333 New Tab Page Use moz-checkbox for New Tab inferred personalization checkbox
2051418 General Add `download` attribute to WebResponse
2051445 Protections UI Search term jumps rightwards in URL bar after you've submitted it
2051554 Theme Introduce a new system ESM as single source of truth for the list of Firefox Themes managed through the new Nova Themes Picker webcomponents
2051628 New Tab Page [Intermittent] The sponsored tiles and the Add Shortcut button look like they reload when pinning and unpinning shortcuts
2051708 Private Browsing Use nova private window theme when built-in system/default, Light or Dark themes are active
2051851 Networking: HTTP Happy Eyeballs registers only the single winning IP for connection coalescing instead of all of the host's resolved addresses
2051915 New Tab Page The custom image URL is not applied to the manually added Top Site tile after editing, showing a preview of the Homepage of the website instead
2051976 Session Restore Move sessionstore logging prefs off of EARLY_BETA_OR_EARLIER
2052019 Graphics: WebRender openmhz.com dropdowns blurry with layout.disable-pixel-alignment=true
2052033 Graphics: WebRender When a box-shadow "fake border" has an animated thickness, the sides thicken at different times
2052037 Audio/Video: Playback Hardware video decoding fails in Firefox 152 (Linux / VAAPI)
2052043 Gecko Profiler xpcshell timeout profiles can be truncated or lost when the scheduled dump is killed mid-write
2052228 Graphics: Text Reduce size of WordCacheKey
2052313 Release Automation `partials` tasks shouldn't run where `partials-zucchini` is the shipping mar
2052336 Layout: Positioned crash near null in [@ mozilla::AbsoluteContainingBlock::PrepareAbsoluteFrames]
2052416 New Tab Page Stocks widget: introduce default state for Medium and Large sizes
2052432 XPCShell Harness Upload a minidump for force-killed hung xpcshell processes on timeout
2052433 Mozbase Optionally request a full-memory timeout minidump via MINIDUMP_FULL_MEMORY (Windows)
2052475 Storage: Quota Manager Audit usage of EARLY_BETA_OR_EARLIER in dom/quota
2052612 General Use moz-src for dom/xslt/xslt/
2052613 General Fix various baselined linter warnings
2052841 Networking Don't taint a same-origin response that a service worker substitutes for a cross-origin request
2052859 DOM: Core & HTML Consider keeping a pool of 4 EventTargetChainItem for SP3
2052864 IP Protection Stale / Erronus ServerList Cache is persisted until the next Bucket update
2052904 Design System and Theming Update ui-icons with the latest Nova icons
2052999 Search [Google Lens] Google Lens camera-overlay should say "Search" or mention Google Lens, to give the user some awareness of what's going to happen when they take or submit a photo
2053049 Address Bar URL bar stops reacting to Enter, click on → does nothing after a while
2053054 Glean: SDK Release Glean v68.0.1 and pull into m-c
2053079 Graphics: CanvasWebGL Ensure GLContextProviderEGL gets shut down on macOS
2053100 CSS Parsing and Computation computedStyleMap().size is always zero
2053198 DOM: Core & HTML Consider only calling Before/AfterSetAttr on static atoms.
2053306 Security: RLBox Expand STL wrapping for wasm-sandboxed code
2053315 Graphics Frequent [tier 2] Android gfx/tests/crashtests/2052609.html | assertion count 5 is more than expected 0 to 4 assertions
2053328 General The "Unlock" icon of the button is not visible in light theme
2053351 Layout: Ruby <rt> doesn't compress to contained content when contained inside an explicit-width container
2053368 CSS Parsing and Computation Share Stylo's Servo-specific derives with Gecko
2053375 DOM: Core & HTML Tons of leaks in beta due to native color picker.
2053385 Password Manager test_include_other_subdomains_in_lookup.html relies on login origin normalization
2053394 Firefox MCP Rename mach command from devtools-mcp to firefox-devtools-mcp
2053401 General Update android nightly application-services version bump to new version 4ca364f258b5cbb99eb20a16860a532208b5d4dc from 2026-07-08 05:01:52
2053409 Password Manager LoginHelper.getBrowserForPrompt should handle a null browsingContext
2053431 Protections UI Fix a minor browser-trustPanel.js bug introduced in bug 2046307
2053442 Messaging System Add PIN_FIREFOX_TO_TASKBAR to the action_only message allowlist
2053444 DOM: Navigation Remove dead code in SessionHistoryInfo
2053449 Machine Learning: General Reduce browsing history pulled on memories first run
2053491 IP Protection Fix heading regression for VPN status box
2053492 Storage: Quota Manager Quota manager telemetry for underflow (bug 1585978)
2053499 Networking: HTTP Update happy-eyeballs crate to v0.10.0
2053507 Graphics: WebRender 3d-transformed "cube carousel" tips on its side and gets distorted as you scroll, at usharbors.com
2053514 New Tab Page Picture of the Day: Follow up Strings
2053515 Messaging System Add Windows Update Build Revision to os in the the Client Environment
2053595 Tabs Navigating to "New tab group" from group selection modal does not trigger navigation
2053623 New Tab Page POTD: Missing string
2053658 Experimentation and Telemetry Uninstall survey reappears when switching between Normal and Private tabs after being dismissed via Cancel
1635927 DOM: Core & HTML Command line options width and height don't work anymore
1655422 Mochitest Remove exceptions added by allowMatchingRejectionsGlobally after each test
1805447 WebRTC: Networking Implement RTCDtlsTransport.onerror
1954212 Panning and Zooming Add preferences to customize the speed of autoscroll
1965896 Performance Add slack notifications for failures for the baseline profile configuration
1982446 General Unskip tests skipped due to Mochia
1985973 Performance [Baseline Profile] Video on FirebaseTestLab are blacked out on Private Browsing for Baseline Profile generation but not Macrobenchmark
2016574 DOM: Animation Modify Keyframe dictionaries to accept timeline range name
2018612 Widget: Gtk [Linux] Firefox blocking suspend
2019346 WebRTC Fix failures in RTCPeerConnection-iceConnectionState.https.html
2026757 about:debugging Fix devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_devtoolstoolbox_target_destroyed.js in standalone (debug)
2033244 Performance "-q" option for ./mach try perf should behave the same as ./mach try fuzzy
2033733 DOM: Networking [LNA] Enable LNA for all desktop users by default.
2038458 Raptor Get browsertime tests working on non-rooted devices
2038521 Design System and Theming Align CFR with the Acorn M3 specs
2041219 UI Tests Intermittent UI test failure - efficiency.tests < SettingsDeleteBrowsingDataOnQuitTest. deleteSitePermissionsOnQuitTest >
2042087 Places Migrate retrieveFullBookmarkPaths to array binding
2042825 Settings UI Clicking inside the "Reload all tabs" warning reloads all the tabs without clicking the actual button
2043730 New Tab Page Add WebNotifications to newtab state
2044112 Machine Learning: Frontend adjust smart cursor behaviors for smart window: usage telemetry, setting to disable, default enable
2046171 Bookmarks Implement the new bookmarks search logic
2046172 Bookmarks Create the new UI and remove old bookmarks search code
2046300 Address Bar Move explanation/reason/rationale strings to the right side of the row and show bookmarked dates too
2046952 Machine Learning: Frontend Add URL bar to Smart Window new tab
2047406 Accounts and Sync Getting error "HTTP status 401 when requesting a token from the tokenserver" sometimes when syncing
2047747 Search [Google Lens] Move Google Lens control setting to "search settings" from "ai settings"
2048149 Containers Containers: update nova colors
2048427 CSS Parsing and Computation [text-box-trim] Add proper support for multi-column layout
2048595 Machine Learning: Frontend The Smart Window Switcher Icon is not displayed according to FIGMA
2049512 Privacy Reversed button placement on "Continue without VPN?" modal
2050060 Security: Process Sandboxing Don't attempt to broker for STATUS_OBJECT_NAME_NOT_FOUND registry call status.
2050114 DOM: Security Reporting API ignores Reporting-Endpoints on localhost
2050339 New Tab Page Crossword widget - Add in locales preview file for en-xx localization
2050375 AI for Development mach bootstrap fails to install agentic coding tools due to out of date rust version (1.95.0 vs 1.93.0)
2050460 Framework Intermittent devtools/client/framework/test/browser_toolbox_options_local_mode_notice.js | single tracking bug
2050615 Web Apps Remove TaskbarTabsRegistry.#emitter entirely
2050687 Widget: Gtk [kde/wayland] Browser toolbox doesn't show
2050759 Address Bar [Nova] Text selection presents artifacts when autocompleting a search engine alias in the address bar
2050846 Themes Double border on keyboard navigation for Search Engine Switcher engines in Alpenglow theme
2050969 New Tab Page Set up boilerplate Picture of the Day widget (prefs/basic UI)
2050972 New Tab Page Add ability to dimiss current daily photo
2050973 New Tab Page Add ability to set the picture of the day as a custom wallpaper
2050975 New Tab Page Display a localized image description for the picture of the day
2050976 New Tab Page Connect Picture of the day widget to the Merino endpoint to set the background of the widget to the current picture
2050977 New Tab Page Add telemetry to the Picture of the day widget
2051259 Messaging System [Windows] The unchecked option texts in the ‘finish_setup_checklist’ callout message are not visible on hover while High Contrast Mode is enabled
2051303 Design System and Theming [WebCompat Reporter v3] 'X' button is missing from the top-right corner of the "Report Broken Site" form
2051610 New Tab Page Newtab shortcuts drag n drop updates to placeholder
2051740 Task Configuration Re-add fuzzing asan build for linux32
2052044 Internationalization: Localization Expose the l10n coverage via the `mozILocaleService` interface
2052062 Private Browsing Update --toolbar-field-border-color-focus in the nova private window theme
2052073 Graphics: Text Improve hash function in shaped word cache
2052169 Performance Process creation is super slow on my Android phone
2052234 XPCOM IOUtils.getFile crashes when given the root of a filesystem
2052249 XPCOM Add a mMayStopProcessing callback to the IdleTaskRunner::Create call in ScheduleIdleMemoryCleanup
2052331 JavaScript: GC Hazard tests fail with new symbols brought in by bug 1908744
2052560 Places Remove always-true clause from NS_ASSERTION in nsNavBookmarks::AdjustIndices (Coverity CID 1274453)
2052589 Layout: Block and Inline [text-box-trim] Add proper support for column spanners
2052616 New Tab Page Fetch New Tab ads through the MozAdsClient in AdsFeed
2052624 Audio/Video: Playback Crash in [@ mozilla::MediaFormatReader::SkipVideoDemuxToNextKeyFrame]
2052635 JavaScript Engine Update irregexp to new version 0c7a9d0d8c05491e8053d7259a1a6b11e75c1907 from 2026-07-04 00:00:00
2052799 Places Some challenge pages use POST to reach the final page, then History is not storing the final title because it skips POST visits
2052948 Messaging System Land strings for streamlined tab context menu Labs rollout
2053004 Panning and Zooming APZ repaint request can sometimes clobber window.scrollBy
2053011 JavaScript Engine: JIT [loong64] Port Bug 2050860 to Loong64
2053038 Address Bar Hover effect is cropped when hovering on the Translation button after a page is translated
2053059 Inspector Add test for DevTools highlighters in SVG document
2053185 UI Widgets Add --badge-font-weight design token to moz-badge
2053206 Web Apps Don't pass the TaskbarTabsRegistry into TaskbarTabsPin
2053332 Address Bar [Nova] Urlbar panel/border/background border for HCM themes
2053382 Experimentation and Telemetry Update strings for the microsurvey uninstall survey answers
2053428 Password Manager Rust login storage: integrate primary-password prompt with cancel handling
2053464 Graphics Webrender worker threads' nsThreads can be leaked in GPU process
2053524 JavaScript Engine Fix another test issue for Linux32 ASan builds
2053574 Debugger Regex flag v causes pretty print to fail in debugger
2053618 Settings Remove CookieBannersStorage usage in Fenix
2053626 Address Bar Support header_text in Merino AMP suggestions
2053638 Graphics: WebRender Render text under an animated transform in local raster space
2053671 CSS Parsing and Computation browser_parsable_css.js does not detect custom property usage in style queries
2053685 Machine Learning: Frontend Intermittent browser/components/aiwindow/ui/test/browser/browser_smartwindow_request_response_telemetry.js | single tracking bug
2053705 Firefox MCP Update docs to reference mozilla/firefox-devtools-mcp instead of padenot/firefox-devtools-mcp
2053837 Performance Bump Firefox Profiler toolchain revision to include jslb size reductions
2053838 New Tab Page POTD: Re-add strings
2053869 General Fix task selection for Thunderbird nightly-build-tasks actions
2053876 General Update android nightly application-services version bump to new version 10e7ed05fbc69c3b57f2e4560c1be1abe6702520 from 2026-07-09 05:02:32
2053884 Search [Google Lens] Switch close button with back button in camera preview screen
2053933 New Tab Page Add author and license attribution to picture of the day
2053963 New Tab Page Crossword widget - Add strings
2053992 Design System and Theming Remove deprecated textOnColorPrimary and iconOnColor from AcornColors
1567396 Application Update String added in bug 1503341 is incorrect
1610046 DOM: Core & HTML Images on https://diverse.direct/ flicker when scrolling
1718366 Site Reports Slight flicker when switching between images on Smugmug
1898531 Site Reports cwb.digital - The login information is not displayed
1898929 Site Reports app.sessionlinkpro.com - Firefox is not supported browser
1910292 Layout: Images, Video, and HTML Frames Images flicker when scrolling the page only initial loading.
1924567 Layout Firefox does not use preferred color scheme for embedded text documents
1927615 Sidebar Add a test verifying that the private browisng indicator is visible
1940173 Graphics: ImageLib Flickering when scrolling on https://bambulab.com/en/a1-mini
1977440 Site Reports https://firesmoke.ca/forecasts/current/ flashes during playback
1988166 General: Unsupported Platforms fatal error: sys/single_threaded.h: No such file or directory
2008143 New Tab Page Button lacks accessible name (Task list widget > ••• button)
2013362 Address Bar Add a context menu item to forget/never autocomplete a site
2016416 Machine Learning: Frontend The Chat Assistant Sidebar frame extends past the main content scrollbar when resized to the max
2018878 Application Panel [Session History] Make table header (indeces) button to navigate content page to given entry
2030362 Disability Access APIs Parent table adopts child table's cells
2033588 Machine Learning: Frontend [a11y] Smart window - Links within chat messages are difficult to distinguish when focused
2036790 Toolbar The "Fill link from clipboard" is displayed in private mode with Light theme
2038764 Theme Remove Nova outer window padding when the window is fullscreen
2040057 Messaging System [Docs] Trigger listeners doc is seriously out of date
2042152 General Investigate if the cookie banners protection CFR and the tab swipe CFR are still needed
2043528 Form Autofill The Credit card/Address/Password are not the same size
2044122 Tabs [Tab Groups] Add support for rearranging tabs within tab groups
2044805 Sidebar Slim down the sidebar and toolbar when horizontal tabs are enabled [non-compact mode]
2045266 Settings UI [win/linux] Different search results are displayed after searching for the same string while the previously searched string is selected
2046063 Shell Integration Prompt to set mailto defaults when clicking a mailto link
2046240 Machine Learning: Frontend Update SmartWindow Nimbus feature with enable variable
2046597 Machine Learning: General [Monitor Agent][Models] Build Monitor Agent runtime
2046790 Menus Update connected devices section of account menu with Nova changes
2047039 Tabs [Tab Group FAB] Add logic to navigate to the create tab group sheet
2047300 Machine Learning: Frontend Replace GPT-OSS with Mistral Small 4 across Smart Window model selection surfaces
2047586 Release Automation merge automation raced against itself and created a bad tag
2048189 Theme Stop / reload button twitches when animating
2048293 Sidebar Sidebar panel should not have gaps and should have a rounded border radius when launcher is not shown
2049391 Machine Learning: General Implement Improved MemoryStore API with Enrichment Fields
2049660 Machine Learning: Frontend The listed Memories show a Hover state when opening the Manage memories panel
2050061 Security: Process Sandboxing Refactor Windows sandbox logging and add profile markers.
2050093 Telemetry Record custom distribution of consecutive active ticks
2050099 Telemetry Record timing distribution for duration of inactive periods
2050124 Lint and Formatting Enable tier 3 typecheck linting for extension framework
2050522 UI Widgets Support placing a moz-visual-picker label outside of the visual item
2050529 UI Widgets Create a module and ReactiveController to handle updates from the theme picker
2050623 XML Update libexpat to version 2.8.2
2050642 Tabbed Browser: Tab Groups Replace tab groups menu empty state illustration
2050811 Layout: Scrolling and Overflow Perma TEST-UNEXPECTED-FAIL | /css/css-scroll-snap/snap-after-relayout/multiple-aligned-targets/common-to-both-axes-supercedes-first-in-tree-order.html | box0 is common to both axes and is the snap target despite being last in tree order. - assert
2050839 Perfherder Gap detection fails to recognize newly added jobs in slice mode
2051119 Settings UI Danish version of Firefox Nightly doesn't always display all content in about:preferences#home tab after an update to Firefox Nightly
2051148 Address Bar Type-ahead is broken in the search option dropdown lists
2051539 General Remove redundant strlen() dead assignment in config/nsinstall.c
2051559 Add-ons Manager Introduce a new aboutaddons-themes-mode webcomponent to the about:addons page
2051564 Add-ons Manager Introduce a new theme-preview webcomponent to be reused in theme addon-card and aboutaddons-themes-picker webcomponents
2051594 Netmonitor Netmonitor and WebConsole UIs clear after a few seconds on tabs loading videos
2051683 Machine Learning: Frontend Sidebar should not animate open when I navigate between tabs
2051744 Machine Learning: General [5.2 Discover] Mistral | Confirm Conversation Starters / Follow Ups match expected user language | Part 2
2051937 XPCOM Fix -Wtautological-type-limit-compare warning in MacStringHelpers.mm
2051959 Address Bar [IPC Urlbar] Phase 6: prove the urlbar actor message path end-to-end (pref-on CI variant + wire-safety fixes)
2052042 Sidebar Update window density controls in Customize Toolbar to a link
2052146 Form Autofill The payment methods/addresses form fields are not previewed upon hovering an autocomplete dropdown entry
2052280 Machine Learning: Frontend [Monitor Agent][FE] Create agent-monitor-item component
2052471 DOM: Core & HTML Audit usage of EARLY_BETA_OR_EARLIER in Document.cpp
2052602 DOM: Editor EditContext content event handler should return rectangles relative to top viewport
2052627 Machine Learning: Frontend Store time since user last switched mode from SW to CW
2052737 JavaScript: GC Extend about:memory logs with additional GC-related information
2052789 Tabbed Browser Only one line of multi-line text is searched when dragging it onto the tab bar
2052986 Shell Integration Expose safe LimitedAccessFeature and LimitedAccessFeatureService interfaces.
2052988 Shell Integration Use safe LimitedAccessFeature interface when pinning.
2052990 Shell Integration Reduce scope of pub in taskbar module.
2053024 web-platform-tests Update web-platform-tests to 428dad3036873d3f071a1e830369b951dda00d13
2053076 Site Permissions Remove the unused `permissions.desktop-notification.notNow.enabled` pref and its "Not Now" prompt button
2053139 DOM: Core & HTML Content scripts cannot call documentPictureinPicture.requestWindow(), DOMException: DocumentPictureInPicture.requestWindow: Document Picture-in-Picture is not available in isolated world
2053201 Themes Implement a compact mode for the theme-picker
2053250 Search [Google Lens Fenix] Telemetry
2053264 New Tab Page Newtab Hide section layout cards that don't fill their row
2053288 Layout: Text and Fonts crash near null in [@ GetFirstLeaf]
2053454 Accounts and Sync Debug support for testing FxA pairing against a local server on Android
2053457 Menu Update icons in the menu to use "On Surface Variant"
2053461 Themes Add support for aria-labels to theme-picker
2053521 DOM: Core & HTML crash at null [@ ComputeKeyHash]
2053938 Nimbus Desktop Client When a pref flip is unenrolled, and the default value changed in the meantime, the old pref value is restored
2054009 General Vendor latest a-s
2054017 Widget: Gtk [Wayland] Disable Implement xdg-session-management-v1 on release
2054038 Graphics Crash in RenderExternalTextureHost on Metal ANGLE
2054041 General Update android nightly application-services version bump to new version f82902621f34b24df2bcaf9887743df06a0d8554 from 2026-07-10 05:02:25
2054066 Address Bar [IPC Urlbar] Make the message-path controller proxy a content module and let the child own controller construction
2054070 Address Bar [IPC Urlbar] Bake the view's per-result data into UrlbarResult for the message path
2054080 UniFFI Bindings Build UniFFI bindgen crates into the objdir via CARGO_TARGET_DIR
2054104 New Tab Page Picture of the Day "Set as wallpaper" always classifies theme as "light" because calculateTheme runs in the parent process
2054106 New Tab Page Picture of the Day "Set as wallpaper" checkmark doesn't track whether the current picture is actually the active wallpaper
2054110 Address Bar [IPC Urlbar] Route speculative connect over the actor message path
2054111 New Tab Page Add a pref / trainhopConfig gate to toggle the Picture of the Day "Set as wallpaper" feature
2054112 New Tab Page Add a dedicated trainhopConfig.widgetPictureOfTheDay payload for POTD feature config
2054206 Machine Learning: Frontend Fix Smart Window Promo ghost button background
2054294 PDF Viewer Update PDF.js to new version 54af14598942f04053bb47b22ae7564d2ea66da4 from 2026-07-11 16:14:46
2054311 General Sort more headers automatically.
2054325 New Tab Page Update locales for Firefox 152.0.6 train-hop
1098981 DOM: UI Events & Focus Handling [GTK] Firefox is missing characters in fast-typing applications (e.g. barcode scanners etc)
1258112 Graphics: WebRender Firefox's border pixel-snapping behavior causes thin borders to disappear entirely when scaled down (e.g. via CSS Transform or print-preview)
1663090 DOM: Core & HTML Promises created from async functions don't resolve when document is detached.
1826841 UI Widgets Update panel-list and panel-item to match the menu spec, use design tokens
1863047 Widget: Gtk Crash in [@ mozilla::widget::WlLogHandler]
1899194 Storage: IndexedDB Retrieving all rows using IDBIndex.openCursor is significantly slower than IDBObjectStore.openCursor
1917308 JavaScript Engine Assertion failure: !id.isPrivateName(), at proxy/Proxy.cpp:398
1978979 Messaging System [about:welcome] Fix changed preference error in browser aboutwelcome tests
2016858 Experimentation and Telemetry Lazily initialize Adjust when needed
2027522 Audio/Video: Playback thumbnail
2029514 Sidebar change full screen icon in zoom sidebar for RTL languages
2030806 DOM: Navigation Expose PartitionedPrincipal on WindowGlobalParent
2033192 Widget: Gtk nsIWidget::GetMaxTouchPoints is not implemented on X11
2034698 IP Protection VPN toolbar icon briefly disapears when you turn it on the first time in a browsing session
2035957 Panning and Zooming Stop cancelling user-triggered APZ animation by zero delta smooth programmatic scroll operation
2037184 IP Protection IP-Protection: implement the kotlin glue for GPI AuthProvider
2039590 Sidebar Medium list view for open tabs sidebar panel
2040556 Audio/Video: Web Codecs Perma beta Android /html/infrastructure/safe-passing-of-structured-data/transfer-audiodata.html | AudioData can be transferred through a MessageChannel - promise_test: Unhandled rejection with value: object "ReferenceError: AudioData is not defined"
2040936 WebDriver BiDi Add download id to download events
2042099 Places Batch fetchBookmarksByURL calls in Bookmarks.remove notifications
2042986 CSS Parsing and Computation Implement parsing of `line-clamp` as a longhand
2046135 Session Restore Frequent browser/components/sessionstore/test/browser_dynamic_frames.js | Test timed out | single tracking bug
2046666 DOM: Animation Use CSSNumberish for AnimationPlaybackEvent.timelineTime
2046675 Sidebar New sidebar: F6 focuses widgets when it should only focus panels
2046791 Graphics: Canvas2D Normalize CPU-architecture-dependent pixels (SSE2 vs scalar/NEON un-premultiply)
2046853 General Streamline `jj` integration for 0.33.0 and higher
2048250 Widget: Gtk Wayland: IBus input method cursor tracking/positioning broken after mutter 50.2 upgrade (text_input_v3 v2 implementation)
2048548 Widget: Gtk [Wayland] Use native Wayland clipboard under pref
2048561 Security Update security approval process
2048590 Privacy The Function in firefox android " use screenlock to hide tabs in private browsing" is no longer valid when you switch tabs from private tabs to normal tabs.
2049858 Security: PSM migrate PSM TLS handshake telemetry to keyed counters
2049912 Menus Style app menu update and addon banners consistently for Nova
2049973 Machine Learning: Frontend The Page and Chat feedback text is not visible with High contrast enabled
2050326 CSS Parsing and Computation [text-box-trim] Add WPTs for ideographic / ideographic-ink edges
2050340 New Tab Page Crossword widget - Add Crossword to AboutPreferences
2050366 Address Bar [Nova] Navigation toolbar color scheme does not match the Figma design in Private Browsing Mode
2050379 Address Bar Dismissing a url autofill should requery and eventually autofill the origin
2050546 Theme Remove dead CSS rule .alltabs-item[selected="true"]
2050620 General Rename "httpconfig" to "viaduct"
2050761 IP Protection [Nova] VPN location list items permanently display hover effect styling without active hover in certain HCM themes (e.g., Dusk)
2050828 Messaging System Clicking the “Manage settings” option from the dropdown menu doesn't open the Settings page for at least 2 callout messages
2051030 Widget: Win32 Firefox Nightly on startup renders a duplicate/glitched slim title bar at the very top on Windows 10
2051238 Layout Add `layout.css.margin-trim.enabled` pref
2051239 Layout Parse and serialize the `margin-trim` property
2051470 Messaging System [Nova] Update ActivationWindowMessage and ASRouterMultistageMessage
2051921 Enterprise Policies Provide a policy that prevents the user from changing the default browser
2052123 Networking: Cookies Update the cookie module owner and peer list.
2052275 Sidebar On initial browser load, the new "Open tools from sidebar" option is enabled even when vertical tabs are enabled
2052302 Security: PSM disable security.ssl3.ecdhe_ecdsa_aes_256_sha by default on all channels
2052330 Sidebar all sidebar tools disappear if you disable "Open tools from sidebar" and enable it again
2052334 Sidebar Firefox no longer remembers the "hide sidebar" option
2052426 Audio/Video: Playback Kick / Twitch audio fails to unmute from media control's mute
2052582 DOM: Editor Hide caret when canvas-based EditContext is active
2052642 IPC IPDL codegen: false-positive Coverity use-after-move in async Send* reject path
2052819 Graphics: WebRender Ancestor clips (overflow:hidden and clip-path) not applied to transformed raster image larger than its container inside a preserve-3d context (regression, 151→152)
2052883 DOM: Core & HTML Remove redundant code in ClientIsValidPrincipalInfo
2052897 Settings UI Perma browser/components/preferences/tests/etp/browser_etp_customize_2.js | This test exceeded the timeout threshold. It should be rewritten or split up. If that's not possible, use requestLongerTimeout - single tracking bug
2053084 Firefox View Perma browser/components/tabbrowser/test/browser/dragdrop/browser_drag_to_pin.js / browser_tab_splitview.js | uncaught rejection: can't access property "shadowRoot", this._pinnedTabsContainer is null when Gecko 154 merges to Beta on 2026-07-20
2053129 Search Reduce false-positives for changed search engine telemetry notifications
2053281 DOM: Animation Assertion failure: isSome(), at /builds/worker/workspace/obj-build/dist/include/mozilla/Maybe.h:1012
2053443 Graphics: Text Micro-optimizations in gfxTextRun::BreakAndMeasureText()
2053467 Privacy [IPProtection] Add all Location Strings for 154 release
2053510 WebRTC Intermittent TV dom/media/webrtc/tests/mochitests/test_peerConnection_setParameters_audioActive.html | Packets stop being received while active is false (53)
2053610 Layout: Text and Fonts crash near null in [@ FrameFontUsage]
2053704 Source Documentation Multiple documentation updates lost during doc markdown migration
2053717 JavaScript Engine: JIT Improve immediate materialization for riscv64
2053753 IP Protection Broken Inclusion-Rule can deadlock the VPN
2053914 Settings UI Perma [tier2] browser/components/preferences/tests/etp/browser_etp_advanced.js | single tracking bug
2053952 WebRTC: Audio/Video Change pref for media.webrtc.hw.h264.enabled to be enabled in Nightly only
2053964 Security: PSM Update NSS to new version 3c8c04efdb7458aefb10ea06f93d5b515fd4cded from 2026-07-09 15:32:14
2054010 Gecko Profiler Improve url handing on some developer-provided free text markers
2054018 Graphics Hook up blocklist and prefs for webrender on Metal ANGLE
2054024 Networking: DNS dns.trr_success Glean metric records nothing
2054031 Performance: General DirectionalityUtils: tweak conditions and avoid Text::GetParent
2054067 Password Manager Use new Rust api methods for login removal
2054083 General MV2 userScripts API fails with: Error: Accessing TypedArray data over Xrays is slow, and forbidden in order to encourage performant code.
2054100 mozperftest Perma [tier 2] ref-ml-llama-smollm2-smk [taskcluster:error] task aborted - max run time exceeded | Aborting task...
2054114 UI Widgets MozLitElement leaks fluent/mapped properties between sibling subclasses (e.g. moz-input-text's placeholder leaks into moz-select)
2054165 Task Configuration mach taskgraph YAML output crashes with RepresenterError on macOS when generating multiple parameter sets
2054168 Address Bar Urlbar passes lazy.logger.error directly as a Promise .catch() handler, which throws on rejection
2054179 Messaging System try-runner.js bundle check does not verify the asrouter-newtab-multistage bundle is up to date
2054199 Try Fix mach try comm detection on Windows by normalizing paths
2054207 Address Bar Remove PrivateBrowsingUtils.sys.mjs import from SearchModeSwitcher.mjs
2054208 WebRTC: Audio/Video crash at null in [@ mozilla::WebrtcAudioConduit::OnDtmfEvent]
2054233 WebExtensions Improve documentation for the native messaging feature in built-in WebExtensions on Android
2054305 Homepage Add a Nimbus flag and secret setting for Homepage Customization
2054316 Homepage Add a Nimbus flag for showing the trending and recent search on the Homepage Search
2054324 Search Show trending and recent searches when starting a search from the Homepage
2054340 General Update android nightly application-services version bump to new version c1f17060cbc6e2071e059a4d5ee924940dee6fca from 2026-07-11 05:03:04
2054342 Form Autofill High frequency TEST-UNEXPECTED-FAIL | browser/extensions/formautofill/test/browser/browser_previewFormFields.js | test_preview_form_fields_on_hover - Test timed out
2054400 Graphics: WebRender Desugar text-shadows into standard display items in the DL builder
2054415 Widget: Gtk [wayland] Proper wl_fixes version with older host libwayland
2054421 Design System and Theming Update Outline Variant color token with the latest Nova specs changes
2054445 Profile Backup Include logins.db (Rust store) in profile backup
2054456 JavaScript Engine: JIT Test failures in wasm/memory-riscv64-ion-codegen.js when huge memory is disabled
2054476 Graphics: CanvasWebGL test_backends.html fails when running WebGL on Metal ANGLE
2054491 Sidebar [Nova] Vertical tabs are off-center (non-compact mode)
2054554 Layout: Scrolling and Overflow Change test expectations of wpt common-to-both-axes-supercedes-first-in-tree-order.html to PASS
2054583 Disability Access APIs VoiceOver does not expose "jump to" action for elements referenced by `aria-controls`
445000 Bookmarks & History No tooltip for folders on bookmark toolbar
1712700 JavaScript Engine PropertyKey::toInt should return unsigned uint32_t
1763859 Places Intermittent toolkit/components/places/tests/unit/test_PlacesDBUtils_removeOldCorruptDBs.js | single tracking bug
1765676 DOM: Events window.confirm() may fail to fire on beforeunload if a select option has been clicked and is still focused
2009295 Storage: Cache API Cache Storage API cache.match() operations exhibit O(n) performance degradation causing severe slowdowns as cache size grows
2015406 Site Reports using reply button in tiktok doesn't work
2015825 Machine Learning: On Device Gather telemetry for all download times for all models
2016214 Machine Learning: On Device Collect telemetry for time to first chunk and average chunk time for text generation
2021952 Layout: Scrolling and Overflow scroll-snap container resnaps during active pan gesture when a CSS scroll-driven animation causes a reflow on descendant
2022995 Graphics: WebRender Add a WebRenderCommandBuilder::GetWebRenderUserData method
2030446 Downloads Panel Nova redesign for Downloads panel
2030953 Sidebar Update chrome and sidebar styling for compact mode
2031817 Application Update A previous fix broke install when running from inside a DMG
2035706 XPCOM Intermittent application crashed [@ mach_msg2_trap] | single tracking bug
2038977 Tabbed Browser Footer panels for links are slightly clipped by rounded corners for tab panels in nova
2042098 Places Batch fetchBookmarksByURL calls in removeFoldersContents notifications
2042302 DOM: Copy & Paste and Drag & Drop Google docs 'paste without formatting' triggers "Paste" context menu
2044703 Firefox Source Docs: Content "Command Line Parameters" article only describes one parameter
2045170 UI Widgets test_moz_button.html failures with Nova enabled
2045914 Settings UI "Restart to Update Nightly" should not be capitalized
2047304 Machine Learning: Frontend Add Europe-specific Mistral promotion UI
2047938 Networking: Cookies Intermittent Assertion failure: false (Late preference writes should be avoided.), at checkouts/gecko/modules/libpref/Preferences.cpp:X
2048745 Keyboard Navigation Provide a way for customkeys to clear all keys
2049022 Telemetry Remove Legacy Telemetry TELEMETRY_* and telemetry.* probes (but not TELEMETRY_TEST_* or telemetry.test.*)
2050141 Layout: Block and Inline [text-box-trim] Set layout.css.text-box.enabled for all users
2050583 Toolbars and Customization Make Classic / Smart window switcher a part of the customizable UI, so it's possible to move and remove it
2050655 Theme [Nova] Page blocks (sidebar/toolbar/content area) in dark theme should have light grey borders
2050773 Form Autofill Address doorhanger icons (location and email) are not visible/hard to see in dark mode
2051358 Graphics: WebRender Borders show stripe artifacts at certain zoom levels when clipped by a rounded container
2051641 Messaging System Show button on completion of onboarding checklist and show progress percentage
2051704 JavaScript: WebAssembly Instantiate wasm components (without imports)
2052013 IP Protection Filter locations list based on default or premium status
2052473 Storage: localStorage & sessionStorage Audit usage of EARLY_BETA_OR_EARLIER in dom/localstorage
2052507 Sidebar Perma browser/components/sidebar/tests/browser/browser_hide_sidebar.js | test_close_button_preserves_panel - Uncaught exception in test - TypeError: can't access property "updateComplete", panel is null - when Gecko 154 merges to Beta on 2026-07-20
2052555 Address Bar Await a dynamic result's pending view update via waitForAutocompleteResultAt
2052692 Audio/Video: Playback Avoid restarting the cubeb audio stream on seek resume to remove the synchronous stream teardown that dominates audible seek latency on macOS
2052823 Site Reports www.payback.de - Error, unable to load the page
2052898 UI Tests Bug 2052898 - Add UI Behavior Test Factory
2052932 WebDriver BiDi `emulation.setLocaleOverride` does not override `Accept-Language` header for in `Worker` for `fetch` and `WebSocket`
2052965 Settings UI Policy: SearchEngines.PreventInstalls=true does not prevent manual adds in settings
2052974 DOM: Geolocation Migrate geolocation tests to wpt tests
2053137 JavaScript: WebAssembly riscv64: use a single instruction for wasm traps
2053311 New Tab Page Crossword widget - Add context menu with postMessages script
2053329 Privacy Remove unused CookieBanners telemetry in Fenix
2053475 DOM: Geolocation Split GeolocationService from dom/geolocation
2053482 Places CopyFavicon should only copy across same origin pages
2053546 Settings UI Move browserIcon.ftl strings into preferences.ftl and enable browser.shell.customIcon.enabled by default to ride the trains
2053571 Messaging System Add strings for browser close message
2053667 New Tab Page Crossword widget - Add "New" badge + interactions logic
2053800 Graphics: WebGPU Update wgpu to upstream (week of 2026-07-06)
2053828 Messaging System Additional Capabilities for Taskbar Tabs Spotlight
2053866 XPCOM [BHR] Symbolication logging can be misleading
2053927 Address Bar [Nova] Update the icon in the switch-to-tab chiclet (view-opentabs.svg) and make it vertically centered
2053934 Search [Nova] Update legacy search bar (browser.search.widget.new = false) text highlighting and clear button
2053953 DOM: Core & HTML Intermittent dom/promise/tests/test_unhandledrejection_preventDefault.html | single tracking bug
2053972 Containers Container icon in the wrong spot in the "Open tab" sidebar
2054054 Graphics: WebRender some borders of styled dropdowns sometimes not painted/shown/visible
2054109 New Tab Page Picture of the Day widget: UX refinements
2054166 Layout: Positioned crash near null in [@ FrameFontUsage] and assertions, at golftotaal.com/gvb-cursus-1-dag
2054187 Machine Learning: General Create Grouping Quality Score for Auto Tab Grouping V0
2054220 DOM: File Integer truncation can lead to parts being incorrectly skipped in MultipartBlobImpl::CreateInputStream()
2054240 Audio/Video Fix bugprone-fold-init-type warnings in WebMDemuxer::GetNextPacket
2054261 Theme Fix reload button disabled state override
2054304 Address Bar [Nova] Switch-to-tab rows are glitched on `wrap` (narrow windows)
2054321 General ld.lld: error: undefined symbol: __atomic_store
2054372 Tooling Update KSP to version 2.3.10
2054373 Crash Reporting Update Sentry to version 8.48.0
2054374 Tooling Update JUnit to version 6.1.2
2054422 Privacy Firefox branding is not visible on Unlock screen
2054436 New Tab Page Daily crossword widget content overflows and clips past the bottom container boundary
2054444 Widget: Gtk Disable key event throttleon X11 by default
2054449 Graphics: WebGPU Audit `bit-set` 0.10.0 → 0.11.1, `bit-vec` 0.9.1 → 0.10.1
2054459 Sync refactor tab sync "quick write"
2054463 New Tab Page Related articles are not opening on click
2054469 Onboarding Update the splash screen icon colour to use the Nova colour tokens
2054477 Messaging System Update AboutWelcome default screens based on pin prompt segmentation and trigger auto pinning when OS-level consent prompt will show
2054518 Search Don't focus the address bar when new tab is opened
2054522 Tooling Update the OSS Licenses Gradle Plugin to version 0.13.0
2054568 New Tab Page Picture of the Day widget - Add "New" badge + interactions logic
2054599 New Tab Page Update the initial order of the Picture of the day widget
2054639 web-platform-tests Update web-platform-tests to 18e675aa9389ffa5461589b9caa8ca57312e2fb5
2054745 PDF Viewer Update PDF.js to new version accfa9a162c66988d2a3a3744e9806e674886655 from 2026-07-13 20:55:15
2054774 Machine Learning: Frontend browser_smartwindow_beta_badge.js fails with Nova enabled
2054784 Address Bar [Nova] Update the trending suggestions icon
2054879 Widget Make the gtkwindowtiled attribute cross-platform
2054897 JavaScript Engine Semi-space nursery can still be enabled via --gc-param when fuzzing safe flag is set
2054936 New Tab Page Crossword widget: Migrate strings from Fluent file back to inline markup
2055061 WebRTC: Audio/Video Change pref for media.webrtc.hw.h264.enabled to be enabled by default everywhere like we do on android
1407718 Theme Developer button in overflow menu is missing the '>' to indicate a subview
1799494 Layout: Scrolling and Overflow Find correct last baseline for `line-clamp` containers
1844645 Messaging System [FxMS Docs] Document which SpecialMessageActions, triggers, and context properties work in which messaging surfaces
2003403 Homepage Homepage-as-newtab breaks custom tabs
2016932 Startup and Profile System Profile delete page heading should enclose profile name in quotes
2019332 WebRTC: Networking Implement RTCIceTransport.getSelectedCandidatePair()/onselectedcandidatepairchange
2022992 Web Painting Unify GetOrCreateASRForFrame and GetOrCreateASRForStickyFrame
2023693 Tabbed Browser: Tab Groups Nova tab group menu icon visual changes
2030715 Add-ons Manager Nova redesign for Extensions panel
2032429 Address Bar When shift-deleting from the new search bar, if deleting the last item, the suggestion text is left in the search bar
2034088 IP Protection VPN toolbar button shows incorrect state and excludes wrong URL for JSON/PDF viewer pages
2035541 Graphics Update ANGLE's vendoring process to make use of gn_processor.py to generate build scripts
2038445 JavaScript Engine Intermittent /builds/worker/checkouts/gecko/js/src/jit-test/tests/profiler/bug2002982.js:40:9 Error: Assertion failed: got 1, expected 3: Expected the same amount of script sources to be registered. Before: 3, After: 1 | single tracking bug
2039046 Privacy: Anti-Tracking Update about:url-classifier to test against the new engines
2039373 Graphics: Color Management Incorrect brightness in HDR videos on YouTube (some HDR videos being incorrectly displayed as BT709 on macOS)
2042413 Messaging System Relaunch new advisory callout message rollout for account adoption
2044826 New Tab Page New-Tab Widgets 3-dot menu entries aren't vertically centered in their hover-granted colorful stripe
2046040 XPCOM Intermittent Assertion failure: data (Cycle collected object used on a thread without a cycle collector.), at checkouts\\gecko\\xpcom\\base\\nsCycleCollector.cpp:X
2046119 JavaScript Engine Update implementation of Dynamic Code Brand Checks proposal to not call ToString on code-like objects in new Function
2046652 AI for Development Claude code ignores instructions about installing profiler-cli when missing
2046848 Menus Add "Create a New Profile" menu item to account menu for Nova
2046884 Panning and Zooming Let sticky axis locking on Mac ride the trains
2046901 Security: PSM Upgrade Firefox 154 to NSS 3.126
2047381 Settings UI Are you sure "DNS over HTTPS hides what sites you visit from your network provider"?
2047518 Networking TLS token resumption roundtrip test
2047803 Security: PSM Enable EV Treatment for SECOM 2024 TLS Roots
2048753 Bootstrap Configuration Bootstrap doesn't retrieve any nodejs toolchain on windows aarm64
2048770 Settings UI DNS over HTTPS custom provider URL is not restored anymore
2049176 Sidebar Cut / Copy from context menu does not work in new bookmark sidebar
2049756 Performance add a mac 1500 NaR variant
2050381 Form Autofill Credit cards doorhanger cannot be reached via keyboard focus upon initial submission
2051179 New Tab Page Focus Timer widget: add small size in Nova
2051881 JavaScript: GC Fix concurrent marking race conditions exposed by TSAN
2052119 Inspector: Rules Extend rule view and stylesheet text content test coverage
2052197 Graphics: WebGPU Move pass and bundle encoding out of the content process
2052260 Inspector: Rules 11.56 - 4.12% damp custom.inspector.manyrules.deselectnode + 1 more (Linux) regression on Fri June 26 2026
2052309 Sidebar Temporarily remove pinned tabs promo when Nova is enabled
2052321 Menus Update "sync is off" variants with Nova styles
2052322 Menus Add All Devices panel to secure sync section of accounts menu
2052405 Privacy: Anti-Tracking Improve Channel conversion into ContentClassifierRequest
2052407 Privacy: Anti-Tracking Integrate the HarmfulAddonProtection into the ContentClassifier preferences sync service
2052427 New Tab Page Stocks widget: add error state
2052830 Crash Reporting Freeze the crashing child process while breakpad writes its minidump on Windows
2053134 Searchfox Simplify idl-analyze.py by having in-tree C++ header generator annotate functions with binding data
2053294 Messaging System Preonboarding splash screen height is no longer full size of the window
2053413 Menus Update connected devices section of app menu with Nova changes
2053462 Error Pages Kit illustration's ear is clipped on cert and many net error pages
2053463 Firefox-CI Administration Move Updatebot to a dedicated pool
2053630 Audio/Video Implement attached mute cases for WPT
2053732 Glean: SDK Hash mismatch in MetricLabelTimerTupleHashKey
2053781 Nimbus Desktop Client Use verifySignature in RemoteSettings.get()
2053782 Settings UI Changing the Windows density in about:preferences has no effect in tablet mode on Windows 11 ARM
2053835 Mach Vendor & Updatebot Support AI usage in Updatebot
2053843 New Tab Page Remove unused Add Shortcut OMC artifacts
2053875 Searchfox Support binding Typescript and IDL items when indexing with scip-typescript
2053883 Firefox IPPAlwaysOn synchronous proxy restart loop freezes browser on live policy change
2053891 Address Bar Clear a soft-blocked origin's autofill block when the user manually types the matching URL
2054037 Privacy: Anti-Tracking Add missing captcha metric
2054149 Private Browsing about:privatebrowsing legacy (non-Nova) newtab promos are invisible: hidden attribute not cleared, defeated by global [hidden] !important rule
2054156 Release Automation improve error handling in marannon
2054328 Address Bar [IPC Urlbar] Gate the address bar's `URIFixup` use behind `#isAddressbar`
2054426 Networking: HTTP [wpt-sync] Sync PR 61246 - Move Early hints tests to a popup model
2054490 XPCOM xpcom/io/nsLocalFileUnix.cpp: remove useless base 64 include
2054507 Firefox Source Docs: Content Update the Pocket Guide to reflect the 2 week cycle changes
2054534 JavaScript Engine: JIT Improve Ion Concat codegen with simd/overlapping copies
2054542 Audio/Video: Playback Media elements are not suspended or resumed by the audio-session interrupt path
2054546 Nimbus Desktop Client Migrations for prefFlips restoring incorrectly
2054566 Task Configuration De-duplicate some logic between Taskgraph and gecko_taskgraph
2054573 XPCOM nsID::Parse (Components.ID) should take a `const nsACString&` argument instead of a raw `const char*`
2054577 Graphics SIGILL on unknown address [@ sk_collection_check_bounds<unsigned long>]
2054585 Sidebar [Nova] Vertical tabs container slowly shrinks when opening a sidebar panel
2054801 Address Bar Update stale source-file references in the address bar source docs
2054821 Graphics: ImageLib adjust jpegxl wpt reftest fuzz for new test file expectations
2054854 Site Reports www.e2enetworks.com - Contact information cards have a blur effect
2054882 Networking: HTTP time_to_request_start regressed for accepted 0-RTT requests
2054887 Marionette Client and Harness Marionette should use "MOZ_REMOTE_ALLOW_SYSTEM_ACCESS" instead of "--remote-allow-system-access" command line argument
2054891 Graphics: ImageLib avif decoder spends more time zeroing per-thread context objects then actually decoding
2054921 Tooling Update Kotlin to version 2.4.10
2054963 Telemetry Intermittent TV toolkit/components/telemetry/tests/unit/test_PingAPI.js | single tracking bug
2055002 Performance Engineering Remove legacy telemetry mirror for networking probes: DNS_LOOKUP_TIME, REL_PRELOAD_MISS_RATIO, NETWORKING_DOWNLOAD_THROUGHPUT_HTTP_2, NETWORK_ID_ONLINE, NETWORKING_DOWNLOAD_THROUGHPUT_HTTP_3
2055045 General browser_ext_themes_pbm.js fails/times out when Nova is enabled
2055096 PDF Viewer Update PDF.js to new version c661ba140807b915d38362c3ecb1208a48b40681 from 2026-07-14 17:41:34
2055104 Source Documentation Perma doc-upload Exception: working directory is not clean; refusing to use a VCS-based finder
2055118 Layout Perma [tier 2] macOS AArch64 shipp /css/css-overscroll-behavior/overscroll-behavior.html | overscroll-behavior-y: chain allows scroll propagation on y axis - Test timed out
2055143 General [DevTools Release Tasks - Cycle 154] Update MDN compat data
2055158 New Tab Page Daily crossword widget is blank after closing and reopening browser
2055197 General Update android nightly application-services version bump to new version 6a29a76c37859167ff5f56ec0953390723862ac4 from 2026-07-15 05:02:38
2055245 Sidebar [Nova] Compact mode hides the sidebar when expand on hover is enabled
2055263 Security: PSM Streamline process for updating ExtendedValidation.cpp
2055353 Address Bar [Nova] Revert the trending suggestions icon back to the zig-zag
418144 Places Favicons are not affected by a hard refresh
1729711 Storage: Quota Manager Incorrect relative header path debug information when object directory is under source directory
1917279 Themes Themes installed via distribution don't show up properly in the UI
1918085 Migration Import instructions for Safari passwords in Firefox need to be updated to better match the new UI changes in macOS 15 (Sequoia)
1923949 Add-ons Manager Remove AddonManager Glean metrics introduced to keep collecting legacy telemetry events from Events.yaml through Glean mirroring
1969189 Layout: Scrolling and Overflow Intermittent /css/css-overflow/targeted-column-scroll-marker-selection-001.html | single tracking bug
1981822 Add-ons Manager Remove test checks for Legacy Telemetry in `toolkit/mozapps/extensions/test/**/*`
1998600 Storage: Quota Manager Record the same information to storage database and metadata v2 files
1998624 Storage: Quota Manager Prioritize storage database values for origin information
1998648 Storage: Quota Manager Use in-memory dirty flag and last write time to save origin metadata sometimes
1998673 Storage: Quota Manager Change storage database schema to have a dirty flag
2007310 Downloads Incomplete Downloads are not shown in download list to resume
2025373 IP Protection Add l10n notes in code for built-in VPN and correct geographic error string
2027136 Panning and Zooming Batch compositor scroll updates over PUiCompositorController for efficiency
2039825 Security Lockstore - Improve the zeroizing of sensitive buffers
2040706 Widget: Gtk Right-click context menus stop working partway through a session on native Wayland
2042516 Sharing Tab group entry point UX polish
2046712 Audio/Video: Playback [Linux] Use VIDEO_HDR feature to enable HDR on Linux
2047140 Widget: Gtk [Wayland] Delete D&D source widget later
2047229 Themes Nova icon updates for duotone trust-icon-insecure and security-broken SVGs
2048748 Sharing Desktop sometimes showing "no shareable links" message when there's 1-2 new tabs in a set of tabs
2049297 General No bugzilla metadata for hidden paths
2050008 Machine Learning: Frontend The Tabs bar moves up when reached with Keyboard navigation
2050289 Sync Promote remote tabs for single-device users in top History menu
2050570 Messaging System Decouple TOU display mechanism from preonboarding requirement
2050631 Release Automation raise update integrity tests to tier 2
2050821 Address Bar Text input is not centered in the address bar and search bar
2050924 Firefox Monitor UI Changes to the Privacy Panel
2050961 General Small fixes for tests broken by enabling browser.nova.enabled
2051136 Security Lockstore - Extend the range of possible expiration and unlock time
2051313 New Tab Page Create devtools controls area for enabling/configuring widget
2051391 geckodriver Release geckodriver 0.37.1
2051573 Add-ons Manager Nova-styled theme previews in about:addons
2051585 Performance Add perfstats support to nav-benchmark
2052296 Security: PSM Add a pref and enterprise policy to enable CNSA2.0 key agreement
2052534 Networking: HTTP Some site fails to load (NS_ERROR_UNKNOWN_HOST) under Happy Eyeballs — routed to a .onion Alt-Svc alternate with no fallback
2052741 Address Bar Show engine icon when switching search modes with `unifiedSearch.always` enabled
2052956 Sidebar Selected state isn't visually indicated in the new sidebar Open Tabs panel for pinned tabs
2053041 Widget: Gtk 52.35% ve-vp8-rt-cam cpuTime (Linux) regression on Tue June 30 2026
2053180 Audio/Video Wrong link in about:support
2053749 XPCOM Simplify a bit static the static atoms set-up.
2053761 Address Bar Move remaining shared constants from UrlbarUtils to UrlbarShared
2053817 about:debugging Make about:debugging Profiler dialog consistent with other dialogs in Firefox
2053906 AI for Development Add dom/media code-review guidance for local use, migratable to bugbug later
2054023 UI Tests Migrate 4 legacy Collections UI tests to the efficiency framework
2054124 Address Bar Address bar moves down farther than the rest of the UI when in fullscreen mode and tries to access menu bar
2054136 IP Protection Land strings for all offramp CFRs
2054140 Homepage Migrate WallpaperState colors to WallpaperTheme
2054175 New Tab Page Update Shortcuts Add/Edit dialog for Nova
2054395 Panning and Zooming Add OOPIF test coverage for swipe-to-navigation with cross-process transforms
2054429 AI for Development Update Claude skill to stmo-cli 0.9.0
2054461 Graphics: ImageLib add some simple jpegxl wpt reftests to make sure basics are exercised
2054480 UI Tests Add TAE behavior factory CI task (tae-arm-behavior)
2054549 Storage: IndexedDB Assertion failure: mMightHaveUnreportedJSException (Why didn't you tell us you planned to throw a JS exception?), at checkouts/gecko/dom/bindings/BindingUtils.cpp:686
2054575 Graphics: WebRender Desugar zero-blur box-shadows into a rect + clips in the DL builder
2054580 DOM: Editor IMEContentObserver shouldn't observe EditContext editing host for mutations
2054783 Settings UI browser_subdialogs.js times out when Nova is enabled
2054878 CSS Parsing and Computation Implement clear/delete method for StylePropertyMap
2054985 New Tab Page Migrate New Tab Widgets expand button to moz-button
2055018 DOM: Navigation Perma [tier 2] /builds/worker/checkouts/gecko/dom/navigation/UserNavigationInvolvement.h:13:3: error: expected identifier
2055031 Messaging System Add space-small inline-end padding to arrow in import wizard's dropdown
2055046 Shell Integration Add Glean probes for custom icon mechanism
2055123 GTest rungtests.py only runs test suites until the first failure is encountered
2055195 New Tab Page Daily crossword completed puzzle and show clues are displayed in medium sized widget
2055237 DOM: Core & HTML Make HTMLDetailsElement a bit faster.
2055257 Networking Perma TV netwerk/test/unit/test_happy_eyeballs_0rtt_fallback.js | test_he_0rtt_h2_txn_gone_closes_connection - [test_he_0rtt_h2_txn_gone_closes_connection : 327] request should fail when null-txn path fires - false == true
2055274 IP Protection VPN toolbar icon lacks hover state on macOS
2055288 WebRTC: Networking Missing include <cstdint> in DataChannelProtocol.h
2055304 New Tab Page Update Discovery Stream Admin buttons to use moz-button components
2055306 New Tab Page Discovery Stream Admin: Add per-widget feature toggles and pref reset buttons
2055307 New Tab Page Migrate Discovery Stream Admin unit tests to jest
2055312 New Tab Page Update Dev Tools Wrench button to match nova redesign
2055314 New Tab Page Add "close" (dismss) button to Discovery Stream Admin panel
2055317 Nimbus Desktop Client Enable isEarlyStartup for opaqueResponseBlocking
2055334 General Perma win minGW /builds/worker/checkouts/gecko/widget/windows/nsWindow.cpp:X:24: error: no member named 'IsWindowArranged' in the global namespace; did you mean 'IsWindowEnabled'?
2055347 Disability Access APIs Crash in [@ -[mozAccessible moxCustomActions]]
2055372 Layout: Block and Inline [text-box-trim] Fix font baseline selection for `text` edge
2055376 PDF Viewer Update PDF.js to new version e39b23904c02c137c8b48c7b3541ba5d4debdca7 from 2026-07-15 15:45:47
2055407 Marionette Client and Harness Release marionette-driver 3.7.1
2055409 General Update android nightly application-services version bump to new version 73048777916d7561bac001d1b875edfaec2236be from 2026-07-16 05:02:31
2055457 Messaging System Do not auto-trigger pinning on first startup on unofficial builds
2055474 Address Bar Use a content-safe deepEqual in urlbar content modules instead of ObjectUtils
2055488 Places Avoid passing the page url in FaviconLoader messages
2055505 Session Restore Change the BUG_COMPONENT for toolkit/components/sessionstore/ to Core:: Session Restore
2055530 mots Missing :alaskanemily as style & layout peer
2055532 Graphics Build and package Metal ANGLE libraries on macOS
2055557 General update a-s
2055625 Sync Add bookmark menu string for send tabs promo work
2055631 Security Lockstore - Round of fixes for tests and formatting
2055635 IPC ChannelMach::IsValidHandle checks the wrong type
1551818 DOM: Animation Web animations mishandle aliases with CSS wide keywords
1810248 DOM: Animation [web-animations-2] Extend Animatable interface for timeline ranges
1862375 UI Tests Intermittent UI test failure - < TopSitesTest. verifyENLocalesDefaultTopSitesListTest >
1890634 Shell Integration Add metrics to understand how often Windows marks taskbar pinning as "Not Available"
2003489 Homepage Thrown to home tab from tab picker screen
2003595 Homepage [homepage-as-new-tab] Undoing closed homepage in PB opens blank tab instead of new homepage tab
2017469 DOM: Animation Add ComputedEffectTiming.startTime
2023762 Menus Nova info architecture changes for application menu
2034296 Tabbed Browser Nova visual update for tab hover preview panel
2035413 Keyboard Navigation Don't allow internal (C++) keyboard shortcuts to be customised in about:keyboard
2039689 DOM: Selection Assertion failure: (mIsSelected == nsTextFrame::SelectionState::Selected) == isReallySelected (Should have called InvalidateSelectionState()), at checkouts/gecko/layout/generic/nsTextFrame.cpp:8519
2041288 Layout High freq /css/css-sizing/responsive-iframe/responsive-iframe-navigation.html | single tracking bug
2042048 CSS Parsing and Computation Make selectors crate lighterweight with default features disabled
2042999 CSS Parsing and Computation Enable non-legacy line-clamp to work without special values
2043356 Settings UI Search results in Firefox settings are lost after navigating away
2044383 Performance Tools (Profiler/Timeline) Closing DevTools throws an uncaught "Connection closed" exception from the performance panel trying to stop the profiler
2044490 Firefox Set up WASM runtime host for built-in DLP engine module
2046483 Task Configuration enable periodic-updates cron job on esr153
2046559 CSS Transitions and Animations Scroll linked timeline lookup should become based on loosely scoped names
2046808 Homepage Spike for making all wallpapers edge to edge
2047669 Layout: Form Controls text-overflow:ellipsis glitchy on <input> elements
2047687 Tabbed Browser Update icon size for X button in the List all tabs menu
2048264 Graphics: CanvasWebGL Respect WebGLPowerPreference on ANGLE on Metal
2048521 WebRTC Implement webrtc stats rtxSsrc and retransmitted(Bytes|Packets)Received
2048729 DOM: Core & HTML Intermittent /html/semantics/forms/the-select-element/customizable-select/picker-icon-animation.html | single tracking bug
2049373 Private Browsing [Nova] Purple flicker when opening a private window and when opening a website in a private window
2049630 UI Widgets Nova: Website contrast "Custom" Radio button is not visibly selected with Nova enabled
2049709 Themes Make visual updates to the create/edit profile page to match Nova specs
2049852 Machine Learning: Frontend Make Smart Window smartbar context chips tab-contextual (persist/restore per tab)
2050154 UI Widgets Replace the custom segmented button in about:editprofile with moz-segmented-control
2051645 Machine Learning: Frontend The Assistant Chat content shows a light background behind the Blur effect
2051696 Sharing Referrals: Hamburger menu entry point
2051699 Sharing Referrals: About firefox entry point
2051701 Sharing Referrals: gate referrals behind pref
2051706 Sharing Referrals: Generate and store referral code
2051786 Keyboard Navigation about:keyboard: Restoring an unassigned shortcut to its default presents a spurious conflict error
2051886 Containers tooltips/titles for container icons do not match image in some cases for Nova design
2051934 General Perma Linux TEST-UNEXPECTED-FAIL | browser/components/shell/test/browser_headless_screenshot_3.js | Test timed out when Gecko 154 merges to Beta on 2026-07-20
2052021 MFBT 5.67% jetstream3 WSL-MainRun (OSX) regression on Mon June 22 2026
2052078 Layout: Text and Fonts WordCacheKey omits language hash when calculating hash
2052150 Shell Integration Kit image briefly persists when reopening the default browser flow
2052162 Printing: Output Regression since 150b1: pdf printing with blank pages / wrong page breaks
2052660 SVG SVG rendering issue when displayed with <use> and <symbol>
2052892 Messaging System Allow the finish setup button to be removed after a certain time has elapsed
2053307 Themes Small visual issues with the profiles icon picker
2053381 Address Bar [Nova] Address bar background leaks outside behind focus outline
2053423 XPCOM About:logging should not mess with the profiler settings user has for normal profiling
2053652 Address Bar [Nova] Use final favicon badge icons (type icons)
2053724 Password Manager Enable Rust storage by default
2053816 Themes Switch theme-picker to use listbox style selection for keyboard navigation
2054118 Homepage Cleanup HomepageState
2054119 Containers Replace the stroke bar in the list of opened tabs with the container icon
2054224 Themes Make visual updates to the delete profile page to match Nova specs
2054500 Machine Learning: Frontend Land "Group my tabs" panel and AutoTabGrouping module behind a default-off pref
2054584 DOM: Editor characterboundsupdate shouldn't be fired if nothing relevant has changed and existing bounds cover the requested range
2054596 General Propagate ENABLE_TESTS build config to Rust
2054782 Bookmarks & History browser_bookmarks_toolbar_drag_with_chevron.js fails when Nova is enabled
2054795 UI Widgets test_menulist.xhtml times out when Nova is enabled
2054796 UI Widgets popup chrome tests fail/time out when Nova is enabled
2054797 General test_moz_box_group.html fails when Nova is enabled
2054984 DOM: Core & HTML crash at null [@ nsAttrValue::GetAsAtom]
2055048 Shell Integration Show a moz-promo when browser is default and pinned above the "bonus" icon set
2055057 New Tab Page Add a dedicated trainhopConfig.widgetCrossword payload for Crossword feature config
2055081 Graphics: WebGPU Update wgpu to f680a2c2 (week of 2026-07-13)
2055109 Address Bar Too much space between the clear and go buttons in the search bar
2055110 Disability Access APIs Clean up static_cast<dom::BrowserParent*> on calls to DocAccessibleParent::Manager
2055116 CSS Parsing and Computation Remove layout.css.anchor-positioning.position-try-order.enabled preference
2055145 Graphics: WebRender Some letters have their bottom part cropped in the address bar
2055216 Shell Integration Directory service used off the main thread crash debug builds
2055343 UI Widgets Vertical picker items with descriptions have their labels center aligned above those descriptions
2055369 New Tab Page Change the URL to open from an anchor tag, not a button element
2055415 Lint and Formatting wpt-subsuite-tagging linter fails on Windows and its unit test isn't run in CI
2055422 Shell Integration Refcounting across threads crash debug builds
2055493 Graphics Perma /css/printing/conic-gradient-skia-crash-print.html | Testing http://web-platform.test:8000/css/printing/conic-gradient-skia-crash-print.html - when Gecko 154 merges to Beta on 2026-07-20
2055522 Performance Monitoring browser_windowclose.js fails when browser.nova.enabled is true
2055555 PDF Viewer Text selection rectangle shows wrong / different part of opened PDF document
2055575 Tooling Fix a couple of Android unit test issues surfaced by the Robolectric 4.17 beta
2055600 Performance Monitoring browser/base/content/test/performance/tabclose and tabopen tests fail with browser.nova.enabled=true
2055640 New Tab Page Fail jest tests that emit console.error messages
2055650 General Fix some more BUG_COMPONENTs
2055655 JavaScript Engine Clean up more code now that PropertyKey::toInt returns uint32_t
2055721 Messaging System Add launch-on-login show-and-tell infobar strings to asrouter.ftl
2055744 CSS Parsing and Computation CustomPropertiesMap's global EMPTY singleton is leaked but not static, so every element cascade pays atomic RMWs on a single global cache line, concurrently from all six styling threads.
2055748 Graphics: CanvasWebGL Mark ReadPixelsResultIpc to [MoveOnly]
2055764 Panning and Zooming gfx/layers/apz browserSidebarRevamp.toml sets sidebar.revamp=false, so it never tests the revamped sidebar
2055766 PDF Viewer Update PDF.js to new version dd7e3731d16ddbf6a0e7516b19205b1d6aed9f87 from 2026-07-17 06:08:07
2055768 General Update android nightly application-services version bump to new version d21832cdb9d89f9bd0c996b9aaec30883d1182d0 from 2026-07-17 05:02:51
2055779 UI Tests Remove dead legacy factory/ tier from ui/efficiency
2055791 Graphics: ImageLib Route web-platform gif tests to Graphics: ImageLib
2055792 Graphics: ImageLib Add fuzzy annotation to avif/animated-avif-timeout.html reftest
2055800 CSS Parsing and Computation Intermittent TV /css/printing/table-container-query-crash-print.html | assertion count 4 is more than expected 0 assertions
2055816 UI Tests Relocate live ui/efficiency logging core out of factory/
2055829 Disability Access APIs Frequent TEST-UNEXPECTED-TIMEOUT | /core-aam/aamtests/role/alertdialog.py | expected OK | single tracking bug
2055849 Firefox MCP Forced to restart (regular) firefox if an update was applied by the MCP driven firefox
2055888 Sidebar Nova-only test failure in browser_drag_to_pin.js and browser_sidebar_pinned_tabs.js
2055895 JavaScript Engine Spelling error on NonOptonalPropertyAccessBase
2055899 Homepage Align the Privacy Mask Icon on the Homepage with the Nova Design Specs
2056006 General Update android nightly application-services version bump to new version 6c74f6a2f9b7ce60df73aee36f20bd0b0f4624f6 from 2026-07-18 05:02:36
1698087 DOM: Security Do not load chrome://devtools/content/shared/webextension-fallback.html using a SystemPrincipal
1840857 Translations Remove the need to eagerly load the TranslationsChild actor by passing the lang attribute via native code
1845783 Translations iframe is not translated
1910169 Translations Full Page Translations Panel first-use header reverts when language is changed
1966652 Form Autofill Frequent browser/extensions/formautofill/test/browser/creditCard/browser_creditCard_doorhanger_display.js | <test> - Test timed out | single tracking bug
2022656 Messaging System Implement lastWindowClose trigger
2038279 Translations Firefox translation feature doesn't translate the chat window on de.dreametech.com
2038713 Design System and Theming [WebCompat Reporter v3] Update "Preview report" bottom sheet.
2041701 History History delete button has low contrast when disabled with Light theme in Private mode
2044968 Tooling Local network permission required for apps targeting Android 17
2047556 Machine Learning: Frontend The Scroll bar from the History Grid List View is barely visible with Light Theme when hovered over
2048118 Geolocation Provider Improve NetworkGeolocationProvider behavior and integration
2048201 Toolbars and Customization In smart windows the inline end padding/margin on the toolbar is too small
2048336 Machine Learning: Frontend Make show/hide of Smart Window first run onboarding screen nimbus configurable
2048353 Networking: Cookies Assertion failure: mRawPtr != nullptr (You can't dereference a NULL RefPtr with operator->().), at /builds/worker/workspace/obj-build/dist/include/mozilla/RefPtr.h:341
2048463 Password Manager Remove or update metrics expiring at the end of Firefox 154: pwmgr.doorhanger_submitted_* before Gecko switches to version 155 on 2026-07-20
2050183 Menu Translate toolbar shortcut is shown even when translations are disabled, unlike the browser menu
2050221 Sync Add bookmark menu items to expose send tab to ineligible users
2051132 web-platform-tests Perma Android /connection-allowlist/tentative/webtransport-dedicated-worker.https.sub.window.html | Cross-origin same-site WebTransport (www) from a dedicated worker is blocked. - Test timed out - when Gecko 154 merges to Beta on 2026-07-20
2051272 Networking: HTTP With Happy Eyeballs enabled, Alt-Svc mappings are not validated through AltSvcTransaction.
2052632 Networking: DNS Occasional incorrect "Server Not Found" errors
2052706 Sidebar Sidebar no longer interactive with mouse cursor in fullscreen mode (F11) due to auto-hide
2052711 Sidebar Sidebars like bookmarks no longer remain visible or appear when toggled in fullscreen mode (F11)
2052843 Agent WPT BiDi tests using lower leak threshold than parent directory
2052861 Machine Learning: On Device [wllama] wllama fails to initialize without blob:system support
2053095 DOM: Content Processes 11.78 - 3.63% outlook fcp + 4 more (Linux) regression on Thu June 25 2026
2053221 Messaging System Support fire and forget for PIN_FIREFOX_TO_TASKBAR action
2053223 Messaging System Update styles for system-prompt-spotlight
2053561 Homepage [A11Y] The back button on the "Show all shortcuts" screen is not reachable with TalkBack
2053730 Keyboard Navigation ENTER is allowed as shortcut hotkey and this will block all other shortcut hotkeys
2053827 DOM: Workers Content process stops responding on Codeberg/Forgejo pages
2053830 Machine Learning: On Device Decommission wllama
2053864 DOM: Selection Assertion failure: lastChild, at /builds/worker/checkouts/gecko/dom/base/nsContentUtils.cpp:3785
2053962 Preferences: Backend Crash in [@ mozilla::Preferences::BackupPrefFile]
2053976 DOM: Device Interfaces Create WPT for gamepad-invoked user activation
2054232 Search [Google Lens] Firefox crashes after I toggle into/out-of Google Lens camera view a few times (Crash in [@ java.lang.IllegalArgumentException: at android.hardware.camera2.CaptureRequest.convertSurfaceToStreamId(CaptureRequest.java)] )
2054364 Graphics: WebRender Graphical glitches at the bottom of https://www.rockstargames.com/VI (with Chrome Mask to get fancier version of the site)
2054424 Networking: HTTP Firefox Nightly downloads text/plain UTF-8 BOM file instead of displaying it inline
2054501 Machine Learning: Frontend Gate Auto Tab Grouping on locale (exclude fr) and the Smart Tab Groups opt-in
2054504 Machine Learning: Frontend Fluent-ize the "Group my tabs" panel and complete an accessibility pass
2054848 JavaScript Engine Remove unnecessary ModuleLoaderBase.h include
2055115 Graphics: WebRender Move more types and functions to webrender_api, in prep for content process interning
2055173 Design System and Theming [WebCompat Reporter v3] 'Optional' word missing from 'Describe tthe problem...' text
2055177 Graphics: WebRender Static CSS transform (scale/rotate) is not applied to color emoji glyphs on macOS; emoji snaps back when a transform transition finishes
2055219 WebRTC Perma /webrtc/RTCRtpSender-replaceTrack.https.html | ReplaceTrack transmits the new track not the old track - Test timed out when Gecko 154 merges to Beta on 2026-07-20
2055260 JavaScript Engine Embedder API to query malloc bytes usage and GC bytes usage per zone
2055341 Machine Learning: Frontend Update SmartWindow to use AboutNewTab TopSites API
2055429 Search History icon not displayed on search results on Private Mode
2055458 JavaScript Engine Intermittent Assertion failure: p, at checkouts/gecko/js/src/proxy/Proxy.cpp:X
2055541 Audio/Video YouTube Audio/Video desync with Bluetooth devices when pausing or skipping
2055720 Privacy: Anti-Tracking Provide localization comments to Content Classifier section strings
2055723 Print Preview “Fit to Page Width” option in the print preview is incorrect. It's very small.
2055765 DOM: Forms Dropdown opens and search text is highlighted when pressing X while the search bar is unfocused
2055902 Graphics: WebRender Nova address bar's rounded ends are thicker and blurrier than before (on Windows?)
2055977 DOM: Selection Assertion failure: ChildIndexIsLessThanTheOtherChildIndex(aParent, aChild2, aChild1), at /builds/worker/checkouts/gecko/dom/base/nsContentUtils.cpp:3982
2055997 XPCOM leaking ~520 Obj-C objects in NS_InitXPCOM
2056010 General Bug 2054596 follow-up: Don't enable shell_windows for Thunderbird test builds
2056019 Networking Prettify about:networking
2056041 Messaging System Consolidate launch options spotlight strings and remove superseded Firefox 153 spotlight strings
2056152 Widget: Gtk Revert the fix for bug 2033848
2056155 Password Manager JavaScript error: resource://gre/modules/LoginManager.sys.mjs, line 510: TypeError: can't access property "uiBusy", this._storage is null
2056160 Address Bar Urlbar menu button loses its background when opened
2056193 Machine Learning: Frontend The Smart Window Switcher is disabled during onboarding
2056306 Graphics: WebRender Animated text remains blurry after animation is completed until being invalidated (transform transition)
2056345 Machine Learning: Frontend Freqeunt linux asan FATAL ERROR: Non-local network connections are disabled and a connection attempt to www.google.com (2001:4860:4826:7700::) was made.
2056373 Shell Integration Update moz-promo illustrations in about:settings#browserIcon for better contrast in dark mode
2056403 General Theming on the three-dot menu in Focus is broken for dark theme
2056501 JavaScript Engine Compilation fails for risc-v with linux 6.6
2056633 Layout Assertion failure: IsTextInputScrolledContent(aBlockFrame->GetParent()), at checkouts/gecko/layout/generic/TextOverflow.cpp:841
2056678 DOM: Core & HTML Fix breakage in our automated webcompat tests and in RemoteSettings intervention updates caused by bug 1610046
2056707 Messaging System support JEXL filter for whether a pref is locked
2056856 Tabbed Browser The tab titles are cut off at the beginning, if System font is `MS UI Gothic`
2057024 Machine Learning: General Memories in v1 schema pre-source field do not convert to v2
2057060 Messaging System Make launch-on-login attributes and targeting capabilities accessible by Nimbus
2057164 Sync Primary Password reprompt after cancelled on subsequent sync requests
2057174 Crash Reporting The InstallTime crash annotation is not stable over different runs on Windows machines
2057429 UI Tests Intermittent UI test failure - < SettingsCustomizeTest. pullToRefreshPreferenceTest >
1922615 DOM: UI Events & Focus Handling Assertion failure: !sActiveIMEContentObserver, at /builds/worker/checkouts/gecko/dom/events/IMEStateManager.cpp:2507
1955142 DOM: Selection Assertion failure: aOriginFrame->GetContent()->IsInclusiveFlatTreeDescendantOf(aLimiter), at /builds/worker/checkouts/gecko/layout/base/nsFrameTraversal.cpp:304
2015460 Widget: Cocoa Hidden FireFox window blocks access to Desktop area on Mac
2032175 Experimentation and Telemetry Prepare Firefox Labs for riding the trains
2044478 Widget: Cocoa Add profile container App Group to production entitlements for Developer Edition
2050228 Printing: Output When printing PDF from Nevada DMV, none of the text makes it into the printout; only the circular "seal" graphic is printed
2051555 JavaScript: WebAssembly Intermittent Assertion failure: data, at /builds/worker/checkouts/gecko/js/src/wasm/WasmGcObject.h:485
2052154 Password Manager The edit button inside the passwords dropdown cannot be reached using the keyboard
2052490 JavaScript: GC Intermittent Assertion failure: !chunk->stolenFromSweepList, at checkouts/gecko/js/src/gc/BufferAllocator.cpp:X
2052497 DOM: Navigation Restrict system principals in PBrowser::NewWindowGlobal to reftests in automation
2054085 Sidebar Toolbar autoshow in fullscreen mode (F11) with vertical tabs enabled has become laggy with large numbers of tabs
2054230 Search [Google Lens] Google Lens title-text ("Google Lens" or "QR Code") is partially-missing on some devices, due to overlapping front-facing camera lens
2054505 Machine Learning: Frontend Add quality filters and a clustering timeout to Auto Tab Grouping
2054506 Machine Learning: Frontend Recent groups, undo, and telemetry for Auto Tab Grouping
2055856 Graphics Don't run gfx sanitytest using a system principal chrome:// URL
2056253 Menus Devices not appearing in connected devices section of account menu
2056302 Experimentation and Telemetry Add Moloco as a new marketing partner in Adjust
2056312 Experimentation and Telemetry Add Rakuten as a new marketing partner in Adjust
2056462 Messaging System Add launchOnLoginAllowedByPolicy targeting getter for launch-options eligibility
2056590 Experimentation and Telemetry Add Skyflag as a new marketing partner in Adjust
2056604 Messaging System ASRouter erroneously ingests messages from non-coenrolling rollouts and experiments at the same time
2057310 Sync TPS could not save passwords
2057393 IME virtual keyboard might not work when opening a new window
2057680 Settings UI Container Settings dialog cropped after first use, hiding Cancel/Done buttons
2057692 DOM: Selection Assertion failure: pointInFlat->IsSetAndValid(), at checkouts/gecko/dom/base/nsRange.cpp:1263
2057769 DOM: UI Events & Focus Handling Editing a page on Wikipedia using the source editor is showing novel behaviour when tab key is pressed
2057894 Layout: Form Controls Fidelity NetBenefits chatbot text-entry placeholder text is clipped on the bottom
2057905 SVG Incorrect LeaderLine positioning on official demo page in Firefox 153
2057946 Session Restore "Also open a new tab" setting should not open a new tab on crash recovery
2057970 Graphics: WebRender border-style: double renders as single border with bad corner rounding
2058110 Site Reports jal.co.jp - Hero section slider stuck in a loading animation loop
2058134 Layout: Text and Fonts Recent Firefox version displays a blue box when selecting text in a Flutter web app's TextField. This interferes with Flutters integrated text selection.
2058165 Tabbed Browser Restored tab is muted if it was closed while audio is playing
2058370 Machine Learning: On Device get_page_content hangs forever when a page read never commits
2058536 Search False-positivites are raised for engine-changed notifications due to not recording the previous values on startup
2058575 Theme Ctrl-Tab preview labels are no longer centered
2058915 Sync Firefox Nightly crashes when signing out of Sync with the "Delete data" option checked
2059015 General Revert partials to mbsdiff on beta
2059489 General Focus context menu image note is not themed (dark background in light theme)
2059897 Address Bar Selection is not highlighted correctly in Address Bar
1179722 Networking kerberos-sspi authentication on windows with extended protection does not work. (Enable Extended Protection (channel and service binding) for Kerberos SSPI authentication)
2035512 Address Bar Inserting mouse cursor caret in address bar at specific location no longer works when clicking near top/bottom edges of box (insertable height does not match visual height)
2048097 Web Audio Firefox fails to build with "dom/media/webaudio/blink/DenormalDisabler.h:78:7: error: unknown type name 'uint32_t'"
2051359 Machine Learning: Frontend ui component for Source Citations for Exa Integration (v1)
2051361 Machine Learning: Frontend Chat History, Settings access in Assistant
2053432 DOM: Networking LNA prompt does not show on Android 17 devices when ACCESS_LOCAL_NETWORK or NEARBY_DEVICES is not already granted
2053889 Machine Learning: Frontend Allow Action Log context chips to wrap or scroll within available space
2054116 Release Automation Send a slack message with the ship graph
2054270 Toolbar Tab bar empty and keyboard fails to open when switching to private mode
2054514 IP Protection ProxyPass infinite refresh-loop when the System-Clock has drifted more then 15minutes.
2055206 IP Protection IPPLifecylce handler does not retry a failed refresh.
2055299 Search [Google Lens Fenix] Opt-out screen
2055462 Themes Find bar text box no longer changes color when a lightweight theme is enabled
2056382 Shell Integration Windows taskbar button icon not reflecting custom browser icon when not pinned
2056384 Machine Learning: Frontend Create Custom Messaging Surface inside Sidebar Chatbot for SW promo
2056931 Shell Integration Synchronize browser.shell.customIcon.id between selectable profiles
2057032 Privacy [IPProtection] Delay onboarding vpn card until fxa is ready
2057033 CSS Parsing and Computation Add gemini.google.com to `layout.css.fake-webkit-scrollbar.disabled-domains`
2057197 Sync Undo fails to restore a recently closed synced tab from the Recent Tabs section
2057205 CSS Parsing and Computation A few radial gradients randomly duplicate in firefox.
2057244 Application Update Most tests in toolkit/mozapps/update/tests/unit_updater_binary fail when run locally
2057481 Browser Engine Trigger ACCESS_LOCAL_NETWORK permission request when connection fails with NS_ERROR_ANDROID_NETWORK_ACCESS_PERMISSION
2057577 Audio/Video: Playback Support FFmpeg 9.0 (libavcodec 63) on Unix
2058014 Machine Learning: Frontend The New chat, Chat history and More Buttons from the New tab AI chat are barely visible with blurred text underneath
2058162 Site Reports www.the-image-editor.com - Page cannot be scrolled, there's no scroll bar
2058205 Machine Learning: Frontend Complete SW Organize Tabs v0 Styling
2058273 Startup and Profile System Adding new prefs to permanentSharedPrefs doesn't automatically start storing them into the database
2058432 Layout: Scrolling and Overflow Power BI Service (app.powerbi.com) displays a phantom horizontal scrollbar in Firefox X.Y
2058525 Theme Inconsistent color scheme between context menu and its submenu
2058595 Sync Perma [tier 2] TEST-UNEXPECTED-FAIL | browser/base/content/test/sync/browser_sync.js | test_recent_tabs_close_then_undo - Node is not focusable via the accessibility API: id: , tagName: toolbarbutton, className: all-tabs-button subviewbutt
2058646 Privacy [IPProtection] Account initialization clean up
2058991 Crash Reporting The InstallTime crash annotation is still not stable over Windows machines
2059365 Agent Frequent M(remote) macOS VM TEST-UNEXPECTED-TIMEOUT | automation.py | application timed out after 370.0 seconds with no output
2059390 Browser Engine IllegalStateException in SitePermissionsDialogFragment.onDismiss
2059430 Startup and Profile System Simplify writing new profile preferences
2059593 Panning and Zooming Drop browsingContext argument from Autoscroll:Start
2059607 Graphics: CanvasWebGL Crash in [@ memcpy_avx_ermsb_amd | mozilla::WebGL2Context::GetBufferSubData]
2059806 Machine Learning: Frontend Add 'Close Duplicate Tabs' button to Smart Window's Auto Tab Grouping and fix menu flyout bug
2059875 Machine Learning: On Device Expose an isAvailable() check for native ONNX runtime
2059883 Machine Learning: On Device Use the regex classifier when native ONNX is unavailable for Form Autofill
2059996 Graphics: WebRender Dithering adds stripes to clipped rgba-to-oklab gradient
2060260 Machine Learning: Frontend [Models] ATG Improve Clustering Algorithm
2060262 Machine Learning: Frontend [Models] ATG Switch Underlying similarity score to use STG Logistic Regression version
2060342 Graphics: WebRender 3d-transformed text is missing/clipped
2060397 Machine Learning: Frontend Smart Window semantic search should have it's own threshold preference
2060705 Machine Learning: Frontend Perma TV TEST-UNEXPECTED-TIMEOUT | browser/components/aiwindow/ui/test/browser/browser_aiwindow_group_tabs_button.js | application timed out after 740.0 seconds with no output
2060748 General Dragging and drop a file from a message to a folder or desktop stops with a "Unspecified error"
2060948 Machine Learning: Frontend SW Organize Tabs: Ensure "Just created" only persists for current menu instance
2060959 Machine Learning: Frontend SW ATG: Suggested group's hover state lingers when moving to another Organize Tabs menu item
2060973 Privacy [IPProtection] VPN get started not working for not signed in users
2061026 Sidebar History sidebar headers ("Today", "Yesterday", etc.) overflow beyond their container, instead of getting properly ellipsized
2061031 Privacy Add plumbing for vpn.error_encountered probes to send the error_code onward
2061633 Address Bar Undo no longer works in the address bar
2061853 Machine Learning: Frontend Add Auto Tab Grouping local model for group name generation
2062254 Translations about:translations fails to acquire a new port after TranslationsEngine destroy
2062474 Machine Learning: Frontend Turn on Auto Tab Grouping Config
2057237 Machine Learning: Frontend Connect citation component with assistant Exa source citations (v1)
2059955 Android Studio and Gradle Integration Enumerate android-gradle-dependencies by Gradle build, and verify the packaged cache is complete
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