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Nightly builds (crashes and bug fixes)

«  Friday, August 22, 2025 

#

Outstanding bugs
Bug Component Impact Summary
1930576 Telemetry 3
priority 2
type 1
Display metrics in storage on about:glean
1941441 Networking: Cache 7
priority 4
severity 2
type 1
Improve cache with aio API
1957460 Startup and Profile System 7
priority 4
severity 2
type 1
Update/Replacing to current set of themes (must do new set of colors / Design Systems changes)
1971388 Tabbed Browser 5
priority 4
type 1
Update telemetry for the active tab when it's in a collapsed tab group
1971847 Tabbed Browser 8
priority 4
type 1
duplicates 2
see_also 1
Add tab group type information to add_tab event
1972771 General 6
priority 3
type 1
duplicates 2
Adding a new panel for AntiTracking debugger behind a pref
1977628 Inspector 1
type 1
Differentiate firefox-supported events from possibly user events in the inspector event tooltip
1980095 Layout: Ruby -1
type 1
regressions -2
Use em-normalized metrics to compute Ruby annotation positions
1980097 Layout: Ruby 1
type 1
Account for margin/border/padding on annotations when computing Ruby positioning
1980098 Layout: Ruby -1
type 1
regressions -2
Use em-normalized metrics for text-emphasis positioning
1980100 Layout: Ruby 1
type 1
Make the normalised-ruby-metrics pref a scale factor to allow fine-tuning of ruby placement
1981083 Graphics: ImageLib 2
type 1
see_also 1
enable define WEBP_USE_THREAD when building libwebp
1982933 Tabbed Browser 27
priority 5
severity 5
type 2
keywords 2
see_also 1
tracking_firefox144 4
tracking_firefox143 4
tracking_firefox142 4
Dragging multiselected tabs is broken in horizontal mode when moving selected tabs together
1983593 Graphics: WebGPU 6
priority 5
type 1
Import Direct3D video frames directly into wgpu for external textures
1984155 web-platform-tests 1
type 1
add os_version for wpt-update
1984167 New Tab Page 1
type 1
Newtab shortcuts small fixes on hover and contrast
1984264 General 3
type 1
duplicates 2
Update android nightly application-services version bump to new version 6cc45245197db8149fb12adf4691e06b25677b6c from 2025-08-21 05:04:06
1984292 DOM: Navigation 1
type 1
Remove ScheduleEventsFromNavigation
1984296 Documentation 1
type 1
Document Enable Split Console setting
Other bugs
Bug Component Impact Summary
1775756 about:logins 9
priority 3
severity 2
type 2
duplicates 2
Intermittent browser/components/aboutlogins/tests/browser/browser_openSite.js | single tracking bug
1809622 DOM: Service Workers 11
priority 3
severity 2
type 2
duplicates 2
see_also 2
document referrer is always empty if page is served from SW
1830230 Netmonitor 13
priority 4
severity 2
type 2
duplicates 4
cc 1
Server sent events not displayed in the Network panel
1881258 Networking 10
priority 4
severity 2
type 2
duplicates 2
MIME sniffing guesses HTML when blink and webkit choose text/plain. Could make Firefox users uniquely vulnerable on poorly configured sites
1912605 General 4
priority 3
severity 2
regressions -2
see_also 1
zstandard fails to build on aarch64 windows python
1944610 Task Configuration 0
Refactor Windows checkout paths to use updated paths
1951783 Translations 0
Include Parent Process Memory in Translations Benchmarks
1965670 Panning and Zooming 10
priority 4
severity 2
type 2
duplicates 2
window.scrollBy smooth scroll does not take into account APZ zoom
1971268 WebDriver BiDi 4
priority 4
Remove content process navigation manager
1971671 Graphics: WebGPU 8
priority 4
severity 2
type 2
`Instance::GetPreferredCanvasFormat` and `wgpu_bindings::server` don't agree on preferred canvas format
1973574 Networking: Cookies 8
priority 4
severity 2
type 2
Assertion failure: storageOriginAttributes.mPartitionKey.IsEmpty(), at /builds/worker/checkouts/gecko/netwerk/cookie/CookieService.cpp:398
1975266 Tabs 11
priority 5
duplicates 6
[Tab Management Phase 1] Refactor the Tabs Tray's Snackbars
1975480 Privacy: Anti-Tracking 4
priority 4
Anti-tracking exception onboarding message CFR targeting
1976024 IP Protection 3
priority 3
Add a ServerList Model
1976028 IP Protection 0
Create a ChannelOberserver to aggregate usage
1976947 General 3
priority 3
Move HOST_LDFLAGS away from Makefile.in
1977100 Debugger 8
priority 4
severity 2
type 2
Dynamically loaded IFRAME cannot view source code in Developer Debugger window
1977191 Glean: SDK 5
priority 5
Land Glean v65.0.0 in m-c
1978033 Responsive Design Mode 4
priority 4
Use consistent coordinate source when handling touch events in TouchSimulator
1978504 General 5
severity 2
type 2
see_also 1
Fenix always crash with Isolated process version of GeckoView due to calling getRunningAppProcesses on isolated process
1979448 General 7
priority 3
severity 2
type 2
Bringing up Dev tools while browsing github: "Web Developer tools panel has crashed"
1979968 Disability Access APIs 0
Introduce insertion point bounds for collapsed range
1980030 IP Protection 3
priority 3
Detect upgrades for the IP Protection Panel
1980210 Inspector: Rules 7
priority 3
severity 2
type 2
Chrome-Only `CSSStyleRule#querySelectorAll` doesn't support `@scope`
1980479 WebRTC 0
Update libwebrtc to 138
1980492 Toolchains 0
Revert changes in third_party/chromium/build and third_party/libwebrtc added because of old gn version
1980499 WebRTC 0
Consolidate build_override changes under third_party (related to libwebrtc and abseil-cpp)
1980622 Privacy: Anti-Tracking 2
type 2
Expose the enabled RFPTargets via privileged APIs
1980942 Graphics: WebRender 2
see_also 2
The variant `webrender-dcomp-disabled` expiration is on 2025-09-01
1980943 Graphics: WebRender 2
see_also 2
The variant `webrender-dcomp-present` expiration is on 2025-09-01
1980944 Graphics: WebRender 2
see_also 2
The variant `webrender-dcomp-overlays` expiration is on 2025-09-01
1980945 Graphics: WebRender 2
see_also 2
The variant `webrender-dcomp-compositing` expiration is on 2025-09-01
1980998 Tooling 0
Remove static mocking from AppStoreTest
1981053 WebRTC 0
Add better messages around missing libwebrtc milestones when updating our default config file during libwebrtc updates
1981104 DOM: Navigation 0
Don't allow the javascript: protocol in navigation.navigate()
1981290 SVG 4
severity 2
type 2
Assertion failure: 0.0f <= intervalProgress && intervalProgress < 1.0f (Interval progress should be in the range [0, 1)), at /builds/worker/checkouts/gecko/dom/smil/SMILAnimationFunction.cpp:394
1981710 UI Tests 2
type 2
Intermittent UI test failure - < MainMenuTestCompose. verifyTheDiscoverMoreExtensionsSubMenuItemTest>
1981720 New Tab Page 9
priority 5
severity 2
type 2
There is no limit for the number of tasks created for a list
1981912 Pocket 3
priority 3
Add a "Discover more" stories screen
1981919 Toolchains 0
Remove the clang 8 toolchains
1982030 Address Bar 8
priority 4
severity 2
type 2
The market Opt-in section flickers when is redisplayed
1982065 Toolbar 2
type 2
[Menu Redesign 2025] Remove nav bar on home menu
1982273 New Tab Page 12
priority 5
severity 5
type 2
Hard-coded text ("Task List", "Add a task") on New Tab widget
1982356 Toolbar 6
priority 4
duplicates 2
[composable toolbar] Improve showing trending searches
1982383 JavaScript Engine 8
priority 5
severity 1
type 2
RangeAnalysis::canBeNegativeZero_ should be conservative.
1982433 Remote Settings Client 0
Consider caching the JEXL result per JEXL expression in the default RemoteSettings filter
1982688 WebRTC 0
remove unused binary test data in third_party/abseil-cpp/absl/time/internal/cctz/testdata
1982921 Android Studio and Gradle Integration -2
regressions -2
Add a universal APK for Fenix to the release archive
1982959 Search 5
priority 5
Handle accept languages params for URL results from the search config
1983053 Graphics: WebRender 0
Hit MOZ_CRASH(internal error: entered unreachable code: Expected untiled image for snapshot) at gfx/wr/webrender/src/resource_cache.rs:681
1983071 Translations 0
Ensure browserLoaded awaits the proper URL in Translations tests
1983168 Graphics: WebGPU 0
WARNING: ThreadSanitizer: data race (pid=22138) | Intermittent toolkit/components/search/tests/xpcshell/test_remove_profile_engine.js | xpcshell return code: -6 | single tracking bug
1983232 Toolchains 7
priority 5
type 2
Rust Update Policy document is outdated for latest releases
1983314 General 1
see_also 1
Fix getSharedPreferences calls in isolated processes
1983393 Search 7
severity 5
type 2
Allow topic specific search engines be set as default
1983410 Inspector: Rules 7
priority 3
severity 2
type 2
Overridden/crossed flicker when adding a css property
1983496 Netmonitor 9
priority 4
severity 2
type 2
keywords 3
regressions -2
25.67 - 4.61% damp custom.netmonitor.manyrequests.togglepanel / damp custom.netmonitor.manyrequests.requestsFinished.DAMP + 4 more (Linux, OSX, Windows) regression on Fri August 8 2025
1983501 General 0
Use a more recent version of Python on some builds
1983542 Search 2
severity 2
Update trending search defaults from experiment result
1983750 Widget: Gtk 3
priority 3
type 2
regressions -2
[Wayland] Use drag failed for Wayland D&D workaround on nightly only
1983783 General 0
Incorrect clang-tidy check description
1983797 Toolbar 7
priority 3
severity 2
type 2
Clipboard autofill banner can hide search suggestions
1983894 Profile Backup 5
priority 5
Don't back up cookies
1983897 MFBT 0
Perma [tier 2] /builds/worker/workspace/obj-build/dist/include/mozilla/MaybeStorageBase.h:66:25: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
1983905 Password Manager 0
[contextual-password-manager] Remove CPM from labs and enable for release
1984014 Graphics: Canvas2D 4
type 2
keywords 2
[GPU-canvas] Copy compositing failure
1984020 UI Tests 0
Refactor About Firefox menu items UI related tests
1984021 Shared Components 0
Remove unnecessary workaround for focus indicator flickering in inplace editor
1984047 Task Configuration 0
profiles from searchfox index tasks are missing resource usage information
1984075 Crash Reporting 1
see_also 1
[Crash Reporter] Suppress crash reporter on isolated processes for testing purposes
1984081 UI Tests 0
Add TestSetup as a base class for ModifierTest
1984085 Inspector: Rules 0
Filter button isn't displayed when toggling properties
1984092 web-platform-tests 0
Perma /mathml/relations/css-styling/parsing/math-shift-computed.html | Property math-shift value 'normal' - assert_true: math-shift doesn't seem to be supported in the computed style expected true got false - when Gecko 144 merges to beta on 2025-09-15
1984093 Layout 0
Perma browser/base/content/test/static/browser_parsable_css.js | Got error message for resource://gre-resources/mathml.css: Unknown property �math-shift�. Declaration dropped. - when Gecko 144 merges to beta on 2025-09-15
1984123 Graphics: WebGPU 2
type 2
Attempting to load resource during WebGPU CTS run fails with 404 errors
1984135 General 0
Use TEST_DIRS instead of guarded DIRS
1984186 Layout: Ruby 4
severity 2
type 2
[css-ruby] Ruby annotations too far from text in vertical mode with some fonts
1984188 New Tab Page 0
Clear about:home startup cache when downgrading / rolling back a train-hop
1984228 Audio/Video: cubeb 0
`input_params` initialization missing after libcubeb update
1984248 Search 0
Remove or update metrics expiring at the end of Firefox 144: browser.searchinit.insecure_opensearc*
1984291 Audio/Video: cubeb 0
Update libcubeb to 46b2f23a2929fc367a8cd07a43975dda1e2ebc69
1984301 Audio/Video: cubeb 0
Update libcubeb to 6579969f9026404abcf1e37bf165391b526d837e
1984310 DOM: Core & HTML 0
Restrict :heading(<An+B>#) to :heading(<integer>#)
1984311 Themes 0
Remove .toolbarbutton-combined-buttons-dropmarker styling from toolkit
1984314 Tooling 0
Analyze MainCoroutineRule usages in tests and remove unnecessary ones.
1984322 Address Bar 3
priority 3
Fix TypeScript issue in ImportantDatesSuggestions.sys.mjs - Property 'makeResult' in type 'ImportantDatesSuggestions' is not assignable to the same property in base type 'SuggestProvider'
1984350 Tooling 0
Refactor SplashScreenManager to avoid the need for MainCoroutineRule in SplashScreenManagerTest.
1984424 New Tab Page 0
Labs Widgets entries should be one combined title/description of both Lists and Timer features
  1. OOM | small (11.96%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::GetGCKindSlots (7.61%)
  3. mozilla::net::LoadInfo::SetReservedClientInfo (7.61%)
  4. js::InternalBarrierMethods<T>::isMarkable (6.52%)
  5. wgpu_hal::dx12::D3D12Lib::create_device (6.52%)
  6. mozilla::widget::WlLogHandler (5.43%)
  7. AsyncShutdownTimeout | IOUtils: waiting for sendTelemetry IO to complete | TelemetryController: shutting down (3.26%)
  8. AsyncShutdownTimeout | profile-change-teardown | ServiceWorkerShutdownBlocker: shutting down Service Workers (3.26%)
  9. mozilla::net::nsSocketTransportService::AttachSocket (3.26%)
  10. EMPTY: no frame data available; EmptyMinidump (2.17%)
  11. nsFaviconService::GetFaviconForPage (2.17%)
  12. nsFind::FindFromRangeBoundaries (2.17%)
  13. -[SCStream updateContentFilter:completionHandler:] (1.09%)
  14. <unknown in nvwgf2umx.dll> | NDXGI::CDevice::DestroyDriverInstance (1.09%)
  15. AsyncShutdownTimeout | IOUtils: waiting for profileBeforeChange IO to complete | CrashMonitor: Writing notifications to file after receiving profile-before-change and awaiting all checkpoints written (1.09%)
  16. AsyncShutdownTimeout | quit-application | Extension startup: addons-search-detection@mozilla.com,Extension startup: formautofill@mozilla.org,Extension startup: newtab@mozilla.org,Extension startup: pictureinpicture@mozilla.org,Extension startup: webcom... (1.09%)
  17. AsyncShutdownTimeout | web-workers-shutdown | Subprocess.sys.mjs: Shut down IO worker (1.09%)
  18. EnterJit (1.09%)
  19. HandleGLibMessage (1.09%)
  20. IPC::MessageReader::FatalError | IPC::ParamTraits<mozilla::dom::BroadcastBlobURLUnregistrationRequest>::Read | IPC::ReadSequenceParamImpl<T> | IPC::ReadSequenceParam<T> | IPC::ParamTraits<nsTArray<T> >::Read | mozilla::dom::PContentParent::OnMessageRec... (1.09%)
#

Outstanding bugs
Bug Component Impact Summary
1967540 DOM: Workers 4
priority 3
type 1
Making Cache API's IPC and result promises handling be retargetable to other event target of the owner thread.
1973655 DOM: Editor 1
type 1
Allow to log mutations which is not caused by the editor
1980392 Graphics: WebGPU 30
priority 5
severity 5
type 2
keywords 2
webcompat 4
tracking_firefox144 4
tracking_firefox143 4
tracking_firefox142 4
pro.easyeda.com - PCB editor does not show content
1983028 JavaScript Engine: JIT 6
priority 5
type 1
Update VIXL support files to current upstream
1984162 Audio/Video: Playback 3
type 1
duplicates 2
Update opus to new version d0c3972856df5c0d73b76984d34a6850b4680237 from 2025-08-20 10:48:53
1984267 Graphics: Text 3
type 1
duplicates 2
Update harfbuzz to new version 11.4.2 from 2025-08-21 08:40:14
1984328 Networking 5
priority 4
type 1
Use a macro to define more LoadInfo fields
1984561 General 1
type 1
Update android nightly application-services version bump to new version 4260ba796d2f62c8240cf52c9c6602fc49deb955 from 2025-08-22 05:03:45
Other bugs
Bug Component Impact Summary
1830230 Netmonitor 13
priority 4
severity 2
type 2
duplicates 4
cc 1
Server sent events not displayed in the Network panel
1884148 JavaScript Engine 4
priority 4
Ship the Atomics.waitAsync proposal
1912605 General 4
priority 3
severity 2
regressions -2
see_also 1
zstandard fails to build on aarch64 windows python
1942416 Telemetry 8
priority 5
severity 1
type 2
Intermittent telemetry/marionette/tests/client/test_fog_usage_reporting.py TestUsageReporting.test_deletion_request | AssertionError: '<random>' != '<other random>'
1958537 Startup and Profile System 7
priority 3
severity 2
type 2
‘Refresh Firefox’ is accessible in switchable profiles via quick action
1961231 Bookmarks 6
severity 2
type 2
keywords 2
[Bookmarks Evolution] Sorting button has a vague accessible name of More Options
1962160 Crash Reporting 1
see_also 1
Remove the legacy telemetry crash ping
1967609 DOM: UI Events & Focus Handling 4
priority 1
severity 1
type 2
Intermittent dom/events/test/pointerevents/test_pointerrawupdate_event_count_touch.html | single tracking bug
1972841 New Tab Page 2
type 2
Weather background is transparent when a custom wallpaper is applied
1973574 Networking: Cookies 8
priority 4
severity 2
type 2
Assertion failure: storageOriginAttributes.mPartitionKey.IsEmpty(), at /builds/worker/checkouts/gecko/netwerk/cookie/CookieService.cpp:398
1974846 Accounts and Sync 3
severity 1
type 2
Fenix's Sync "Sign out" prompt has "Cancel" text clipped on the bottom
1975681 Widget: Gtk 2
type 2
[KDE][Wayland][global-menu] Sidebar expand on hover stops working after interacting with something
1979115 Lint and Formatting 1
see_also 1
Add a Stylelint rule to enforce using border-radius tokens
1979411 IP Protection 4
priority 3
see_also 1
Pass errors down to IPProtectionPanel
1980622 Privacy: Anti-Tracking 2
type 2
Expose the enabled RFPTargets via privileged APIs
1980671 IP Protection 0
Add tooltip to IP protection toolbar icon
1981384 Documentation 7
priority 3
severity 2
type 2
Add missing alt attribute for 3 images in https://firefox-source-docs.mozilla.org/devtools-user/web_console/split_console/index.html
1981469 Logins 4
severity 2
type 2
[compose logins] Password details do not fit the entire screen
1982662 MFBT 0
Use std::default_delete instead of mozilla::DefaultDelete
1982947 DOM: Core & HTML 4
severity 2
type 2
dom/base/test/test_lock_orientation_after_fullscreen.html fails on new android 14 emulator
1983213 Security: PSM 5
priority 5
Upgrade Firefox 144 to NSS 3.116
1983531 IP Protection 0
Hookup the IP Protection service state to the channelfilter
1983594 Graphics: WebGPU 5
priority 5
Let webgpu external textures ride the trains on Windows
1983598 Messaging System 15
priority 5
severity 2
type 2
keywords 2
tracking_firefox143 4
The 'x' button on the promo messages is not visible in New Private Windows
1983691 IP Protection 7
priority 3
severity 2
type 2
Stop IPProtectionService on sign-out
1983755 Netmonitor 8
priority 3
severity 2
type 2
see_also 1
Testcase generating eTLD + N URL and fetching it results in JS jank
1983799 Networking 4
priority 4
Run upload/download tests with Chrome regularly
1983973 Widget: Gtk 12
priority 3
severity 5
type 2
keywords 2
[Wayland] Firefox 142 crashes when switching to second device using KVM switch
1983979 New Tab Page 0
Remove spocMessageVariant experiment from New Tab
1984054 General 7
priority 5
type 2
Don't use the mozilla.telemetry.glean.internal namespace in app code
1984065 General -2
regressions -2
turn on more tests for android 14 emulator
1984136 General 0
Disable clang plugin tests under --disable-tests
1984166 IP Protection 7
priority 3
severity 2
type 2
Reload the current tab when IPProtectionService starts or stops
1984176 IP Protection 7
priority 3
severity 2
type 2
Allow checking only cached clients in isLinkedToGuardian
1984214 Address Bar 13
priority 5
severity 5
type 2
see_also 1
Selecting a market result with the keyboard blanks out the input
1984239 IP Protection 7
priority 3
severity 2
type 2
Undo repeat subscription check in IPProtectionService
1984262 Address Bar 13
priority 5
severity 5
type 2
see_also 1
Picking the market opt-in button with the keyboard doesn't work properly
1984263 Bootstrap Configuration 2
type 2
mach fails with OSError when trying to get setting from arcconfig in a git worktree
1984275 Netmonitor 0
Rename mutableStatisticsOpen to statisticsOpen
1984327 Inspector: Rules 4
type 2
keywords 2
shorthand expander not displayed after editing declaration value
1984333 Privacy: Anti-Tracking 5
priority 3
severity 2
Bump Spoofed Processor Count
1984340 Logins 4
severity 2
type 2
[compose logins] Center logins list content on large screens
1984341 JavaScript Engine: JIT 2
type 2
Add missing definition of MacroAssembler::moveFloat16ToGPR for MIPS
1984369 General 3
priority 3
Remove UrlbarValueFormatter from the browser window globals
1984507 SVG 2
type 2
Assertion failure: inverted (Attempted to get the inverse of a non-invertible matrix), at /builds/worker/workspace/obj-build/dist/include/mozilla/gfx/Matrix.h:277
1984523 General 0
migrate most linux 18.04 tsan tests to ubuntu 24.04
1984548 Address Bar 5
priority 5
Create the realtime opt-in result entirely in code rather than relying on the RS data
1984557 Crash Reporting 2
type 2
Fix $XDG_CONFIG_HOME handling to crash_helper_server
1984604 Inspector: Rules 4
type 2
keywords 2
Margin around expanded shorthand properties is too big
1984606 DOM: Navigation 4
severity 2
type 2
Failures steps in #inner-navigate-event-firing-algorithm should call #reject-the-finished-promise
1984607 Tooling 0
Remove MaincoroutineRule from ClipboardSuggestionProviderTest
1984613 DOM: Navigation 4
severity 2
type 2
Focus reset behavior isn't initalized properly
1984614 Tooling 0
Refactor AsyncDrawableMenuIconViewHolder to remove MainCoroutineRule from DrawableMenuIconViewHoldersTest
1984633 Tooling 0
Refactor WebExtensionBrowserMenuItem to remove MainCoroutineRule from WebExtensionBrowserMenuItemTest
1984641 DOM: Navigation 0
Add stubbed precommit handler crashtest
1984669 Release Automation 0
exception Focus nightly CRITICAL - Chain of Trust verification error!
1984690 New Tab Page 0
Detect luminence for custom wallpapers