Current Desktop beta cycle: 137

Uplifts by Product
153 uplifts

  1. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (13.04%) Top crash 1472062
  2. OOM | small (8.70%) Known top crash
  3. <.text ELF section in libEGL_nvidia.so.570.124.04> (7.25%)
  4. nsFind::FindFromRangeBoundaries (5.80%) 1949877
  5. AsyncShutdownTimeout | IOUtils: waiting for profileBeforeChange IO to complete | JSON store: writing data for 'targeting.snapshot' (4.35%) 1877111
  6. js::gc::detail::ChunkPtrHasStoreBuffer (4.35%) 1940438
  7. AsyncShutdownTimeout | AddonManager: Waiting to start provider shutdown. | AddonRepository Background Updater (2.90%) 1841444
Uplifts and Backouts
Bug Component Summary
  1. OOM | small (14.49%) Known top crash
  2. nsFind::FindFromRangeBoundaries (11.59%) Top crash 1949877
  3. mozilla::detail::RunnableFunction<T>::Run (10.14%) Top crash
  4. OOM | large | mozilla::JSHolderMap::Put (4.35%) 1892171
  5. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext (4.35%) 1949316
  6. AsyncShutdownTimeout | AddonManager: Waiting to start provider shutdown. | AddonRepository Background Updater (2.90%) 1841444
  7. OOM | large | NS_ABORT_OOM | nsTSubstring<T>::AllocFailed | nsTextFragment::AppendTo (2.90%)
Uplifts and Backouts
Bug Component Summary
1949789 Address Bar Frecency is not incremented for viewtime interaction on multiple tabs for the same website on recalculation
1951137 Experimentation and Telemetry Add google play referrer intent value to debug info screen
1951143 Build Config Move configuration variables from confvars.sh to moz.configure
1951213 New Tab Page Unreadable text contrast on Firefox new-tab page (dark-on-dark or light-on-light), if preferred color-scheme differs from Firefox theme
1951437 General Perma [beta] MSIX browser/base/content/test/about/browser_aboutSupport.js | browser_policy_disable_profile_reset |browser_print_selection.js | browser_restore_pageProxyState | single tracking bug
  1. OOM | small (12.64%) Known top crash
  2. nsFind::FindFromRangeBoundaries (7.14%) 1949877
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (6.04%) 1472062
  4. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext (4.95%) 1949316
  5. AsyncShutdownTimeout | profile-before-change | ServiceWorkerRegistrar: Flushing data (2.75%)
  6. AllocInfo::GetInChunk (2.20%)
  7. mozilla::dom::Selection::SelectFrames (2.20%) 1907464
Uplifts and Backouts
Bug Component Summary
1943454 PDF Viewer Enable enableUpdatedAddImage by default
1948433 Layout Changing color-scheme janks the content process with quadratic behavior if there are lots of SVG images (and so changing theme janks the frontend if there are lots of tabs open)
1948642 Gecko Profiler Firefox on Solaris doesn't start with Bug 1948174
1950220 Media Tab continues to play video after closing tab (YouTube)
1950282 Site Reports f1tv.formula1.com - Firefox is not a supported browser
1950857 Address Bar ‘Add <engine>’ + sign missing from the Unified Search Button dropdown
1950991 Browser Engine Serialize access to sessionsPendingDeletion
1951128 PDF Viewer 21.08 - 6.16% pdfpaint bug1749563.pdf / pdfpaint issue11306.pdf + 38 more (Linux, OSX) regression on Mon February 24 2025
1951284 Address Bar Address bar is transparent when pasting text into new window
1951296 Widget: Gtk Nightly moves windows up after restart and reduces the height of maximum height windows
1951443 Privacy: Anti-Tracking Disable 3pcd in ETP strict
1951488 Tabbed Browser Dragging pinned vertical tabs a tiny amount causes them to switch place or move to the end of the pinned tabs list
1951587 New Tab Page Newtab minor console error related to wallpaper v1 removal
1951939 Tabbed Browser Save and close tab group when middle clicking the group label
1952199 PDF Viewer Perma toolkit/components/pdfjs/test/browser_pdfjs_check_alttext_en.js | true == false - when Gecko 138 merges to beta on 2025-03-31
1952267 DOM: Core & HTML Add H1 styling pref to the feature manifest, so it can be rolled out incrementally
1942551 N/A N/A
  1. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (13.14%) Top crash 1472062
  2. OOM | small (12.00%) Known top crash
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::TraceEdgeInternal (5.71%) 1472062
  4. nsFind::FindFromRangeBoundaries (4.00%) 1949877
  5. XREMain::XRE_main (2.86%) 1909700
  6. AsyncShutdownTimeout | AddonManager: Waiting to start provider shutdown. | AddonRepository Background Updater (2.29%) 1841444
  7. mozilla::GetBootstrap::<T>::operator() (2.29%) 1816848
Uplifts and Backouts
Bug Component Summary
1938418 Debugger Improve the behavior of preview tooltips
1938423 Tabbed Browser Record telemetry event on tab group creation
1942797 Glean: SDK Generate server-knobs config to be applied in tests when otherwise a subset of metrics is used
1949914 Widget: Win32 Context menus only open the first mouse click when using SW-WR
1950879 Gecko Profiler ../include/mozilla/BaseProfilerMarkersPrerequisites.h throws many errors while compiling:
1951575 Debugger devtools debugger font error
1951649 Address Bar The "Search with" row is expanded when typing a keyword while the opt-in message is displayed
1951651 Address Bar The contextual opt-in message is displayed for a moment when re-focusing the addressbar after the message previously dismissed
1951946 Address Bar The opt-in message doesn't disappear if it has more than 20 exposures and 5 days have passed and
1952054 Debugger Debugger Source Tree settings icon is off by 1 px
1949987 N/A N/A
  1. OOM | small (11.26%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (9.38%) 1472062
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext (5.63%) 1949316
  4. nsFind::FindFromRangeBoundaries (4.02%) 1949877
  5. nsGlobalWindowInner::ClearDocumentDependentSlots (2.95%) 1803675
  6. js::gc::detail::ChunkPtrHasStoreBuffer (2.68%) 1940438
  7. mozilla::dom::AbstractRange::UpdateCommonAncestorIfNecessary (2.14%) 1921691
Uplifts and Backouts
Bug Component Summary
1646462 Release Automation Add Firefox ARM64/AArch64 option to Flathub (Flatpak)
1924932 Graphics Excessive Windows DWM usage when screen is locked and display enters standby
1934873 Debugger dev tools go to line shortcut not workin
1948139 Messaging System Add fullscreen / split screen mode styling to AddonsPicker component
1951212 JavaScript Engine: JIT Assertion failure: operand.reg().size() == rd.size(), at jit/arm64/vixl/Assembler-vixl.cpp:4449
1951422 Places Remove numInteractions from alternate frecency and use numSampledVisits instead
1951895 SVG discard element doesn't work in html documents
1951930 Widget Firefox radio buttons unusable on dark backgrounds
1952532 Graphics: Canvas2D 6.13 - 2.89% google-docs FirstVisualChange / google-docs SpeedIndex + 1 more (Windows) regression on Thu February 27 2025
1952836 Inspector Attribute xpath search (e.g. `//div[text()="hello"]` ) in markup view doesn't work anymore
1952926 Security: Process Sandboxing Enable MITIGATION_WIN32K_DISABLE and MITIGATION_DYNAMIC_CODE_DISABLE flags for compatible GMP processes for release.
1952952 JavaScript: Standard Library Fully ship Atomics.pause
1952001 N/A N/A
1952268 N/A N/A
1951017 N/A N/A
1951494 N/A N/A
  1. OOM | small (12.58%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (11.76%) Top crash 1472062
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext (4.08%) 1949316
  4. nsFind::FindFromRangeBoundaries (2.94%) 1949877
  5. nsGlobalWindowInner::ClearDocumentDependentSlots (2.45%) 1803675
  6. mozilla::RestyleManager::ElementStateChanged (1.96%) 1936213
  7. shutdownhang | mozilla::SpinEventLoopUntil | nsThread::WaitForAllAsynchronousShutdowns | nsThreadManager::ShutdownNonMainThreads (1.96%) 1524247
Uplifts and Backouts
Bug Component Summary
1938397 Tabbed Browser Record active tab group metrics
1943456 PDF Viewer Enable alt text generation for all EN-* locale users
1946121 Password Manager The Primary Password prompt is displayed after reopening Firefox(profile without having Sync on)
1950973 Tabbed Browser Unexpected behavior when closing a group with a `beforeUnload` handler
1951319 Session Restore Session restore fails to restore tabs in groups
1951670 DOM: Security Add a report-only CSP for blocking inline event handlers in browser.xhtml (for Release)
1951719 Sync [Experiment] [Intermittent] The “Turn on Syncing…” option is displayed in the FxA panel even though Sync is already Turned ON in the preferences
1952153 Inspector: Rules The tooltip showing font samples uses the wrong font
1952199 PDF Viewer Perma toolkit/components/pdfjs/test/browser_pdfjs_check_alttext_en.js | true == false - when Gecko 138 merges to beta on 2025-03-31
1952348 New Tab Page Visual tweaks for publisher favicons
1952416 Menus Downloads context menu has an extra divider and options are jumbled
1952564 Data Sanitization New update checked "Cookies and site data" automatically for some users
1952706 WebRTC: Networking DTLS 1.3 SRTP derivation key computation uses the wrong length as an input to KDF
1952756 Widget: Gtk Client side decorations offset clickable screen area
1952783 Audio/Video: Playback Assertion failure: int32_t(mRefCnt) > 0 (dup release), at ...dom/media/platforms/ffmpeg/VALibWrapper.cpp:128
1952887 Address Bar The opt-in message is displayed for a moment when re-focusing the addressbar after 20 exposure condition is met
1952902 Session Restore Only 25 Tabs are restored for Saved and Closed or Deleted groups
1952929 New Tab Page Multiple topics are wrongly marked as unfollowed in the "Follow topics to personalize your feed" section even if only one section is unfollowed
1953050 Layout Crash [@ AppendStyleSheetSilently]
1953135 Inspector: Rules The tooltip showing font samples uses the wrong font on font-family with multiple values
1953214 Tabbed Browser Dragging and Dropping multiple pinned tabs in a tab strip with a lot of tabs will break the UI
1953270 Audio/Video: Playback [wmfme] propagate the HRESULT in the message description
1953352 Console Browser console crashes every time I click "Show/hide message details" next to network request log line
1953374 DOM: Security Improve the classification of userChromeJS files for telemetry (part 2)
1953381 JavaScript: WebAssembly Wasm/SIMD _mm_blendv_epi8 yields incorrect result
1953390 Networking: HTTP Revert bug 1910298
1953702 Marionette Remove medata for "/webdriver/tests/classic/set_window_rect/set.py" on Mac
1953722 WebRTC: Audio/Video Crash in [@ mozilla::WebrtcGmpVideoEncoder::Encode_g]
1850615 N/A N/A
1953368 N/A N/A
1950360 N/A N/A
  1. OOM | small (17.62%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (15.45%) Top crash 1472062
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext (5.53%) 1949316
  4. js::gc::detail::ChunkPtrHasStoreBuffer (2.55%) 1940438
  5. nsGlobalWindowInner::ClearDocumentDependentSlots (1.73%) 1803675
  6. mozilla::image::DecodePool::DecodePool (1.68%) 1840159
  7. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::Nursery::maybeMoveRawBufferOnPromotion (1.30%) 1472062
Uplifts and Backouts
Bug Component Summary
1941931 Application Update Firefox won't update on restart; it must be closed and then reopened
1946547 DOM: Navigation Back button cannot undo YouTube autoplay due to new "excessive history entries" feature
1946737 PDF Viewer Make it possible to set signature feature pref via Nimbus
1950611 Tabbed Browser Closing the Firefox browser by Saving and Closing the last Tab group will show that Tab group twice after restart
1951536 Networking: Cookies Assertion failure: false, at /builds/worker/checkouts/gecko/netwerk/cookie/CookieServiceChild.cpp:319
1951744 Audio/Video Error handling race with video.src
1951987 Security: PSM TLS Client Certificate prompt no longer respects "Remember this decision"
1952046 New Tab Page Newtab articles are all in a loading state
1952335 Messaging System Allow multiselect to keep state amongst multiple instances of multiselect on the same screen
1952884 Bookmarks & History Allow interactions viewer to be visible behind a pref
1953021 Address Bar Hide contextual opt-in message if 5 days passed since first impression AND seen more than 20 times
1953102 Layout: Flexbox Firefox Regression Report: Scrolling Issue in Converse.js (with 'justify-content: space-between' on column-reverse flex container)
1953133 Onboarding Add treatment-a configuration for onboarding customisation to the default card config
1953645 SVG Assertion failure: !mHrefTarget.get() (We shouldn't have a href target if we don't have an xlink:href or href attribute), at /builds/worker/checkouts/gecko/dom/svg/SVGAnimationElement.cpp:60
1953833 Onboarding Update toolbar-placement string from onboarding_save_and_start_button onboarding_save_and_continue_button to
1954159 New Tab Page Newtab sections connect follow block customize menu to nimbus
  1. OOM | small (15.62%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (14.82%) Top crash 1472062
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | CCGraphBuilder::AddNode (5.85%) 1891902
  4. js::gc::detail::ChunkPtrHasStoreBuffer (2.69%) 1940438
  5. mozilla::dom::quota::QuotaManager::Shutdown::<T>::operator() (1.37%) 1872960
  6. OOM | large | NS_ABORT_OOM | nsTSubstring<T>::AllocFailed | nsTSubstring<T>::GetMutableData | IPC::ParamTraits<nsTSubstring<T> >::Read::<T>::operator() | IPC::ReadSequenceParam | IPC::ParamTraits<nsTSubstring<T> >::Read | mozilla::ipc::ReadIPDLParam<T> (1.32%)
  7. EMPTY: no frame data available; EmptyMinidump (1.27%) 1866123
Uplifts and Backouts
Bug Component Summary
1891671 Media Paused video occasionally restarts
1949491 Site Reports stackoverflow.com - Redirects to login page when trying to access the full inbox
1949695 General `about:config` is not longer accessible on Fenix Beta
1951428 Graphics: WebGPU error[E0412]: cannot find type `Vulkan` in module `wgc::api`
1952292 Graphics Crash in [@ @0x0 | mozilla::gl::GLContext::fEGLImageTargetTexture2D] with AMD Radeon Software for Linux closed-source drivers
1952496 PDF Viewer PDF Viewer is constantly re-rendering detail canvas on zoom
1953073 Address Bar Calculator: Adjust Formatting Rules
1953175 New Tab Page Newtab update default topsite icons
1953920 Address Bar [Win] USB dropdown is not dismissed when clicking on it to close it
1953927 Address Bar Address bar dropdown is not dismissed after opening USB and then clicking outside
1954078 Settings UI Enable linking directly to sidebar and vertical tabs settings by giving it a subcategory
1954228 Browser Engine Race condition when removing tab that can cause a CME in the EngineSession ObserverRegistry
1954401 Onboarding Update Fenix's ToU URL
1954581 Menus saveHelper fails completely if network request does not hit onStartRequest (sends headers) within the timeout
1954603 Session Restore when exiting Firefox with 0 windows open and session restore enabled, saved groups will be lost
1954608 SVG Disable discard element
1954706 Inspector CSP violation style-src-attr in devtools/content/inspector/markup/markup.xhtml
1954804 New Tab Page Newtab wallpaper attribution is not showing
  1. OOM | small (17.20%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (14.26%) Top crash 1472062
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext (6.47%) 1949316
  4. js::gc::detail::ChunkPtrHasStoreBuffer (2.68%) 1940438
  5. js::gc::HeaderWord::get (1.87%) 1948635
  6. AsyncShutdownTimeout | IOUtils: waiting for profileBeforeChange IO to complete | JSON store: writing data for 'targeting.snapshot' (1.67%) 1877111
  7. OOM | unknown | NS_ABORT_OOM | mozilla::dom::Promise::CreateInfallible | mozilla::dom::streams_abstract::SetUpReadableByteStreamController (1.52%) 1923864
Uplifts and Backouts
Bug Component Summary
1937806 Application Update Issues with the MacOS pkg installs when updating to the latest version with Standard users
1942645 Homepage [homepage compose] The transition between Private Browsing and Normal Browsing is not smooth
1943102 Homepage [homepage compose] The private browsing mode CFR is misplaced
1944530 Crash Reporting Firefox Crash Reporter not updated after a second language change
1949695 General `about:config` is not longer accessible on Fenix Beta
1952015 Tabbed Browser On Windows, pinned tabs are too wide if the UI Density is set to "Touch"
1952825 Theme Sidebar pressed state shows no focus indication
1953548 Homepage [homepage compose][a11y] Incorrect Talkback announcement for shortcuts
1953753 Glean: SDK Add additional fields to the `onboarding-opt-out` ping in Firefox Desktop
1953853 General Perma browser/components/tests/marionette/test_no_errors_clean_profile.py TestNoErrorsNewProfile.test_no_errors | AssertionError: Lists differ: [{'message': '[JavaScript Warning: "Conten[280 chars]!?'}] != [] when Gecko 137 merges to release on 2025-03-24
1953902 PDF Viewer Uplift few pdf.js patches in beta (137) in order to fix some a11y bugs
1954359 General Build failure with GCC and LTO
1954488 Session Restore Tab groups are deleted from the list all tabs menu if a session without the previous tab groups inside the tab strip is restored
1954500 Tabbed Browser Tab group metrics do not follow spec
1954607 Top Sites Compose top sites - last page shrinks to fit single row
1954704 Inspector: Rules Adding declaration in Rules view adds it after any nested declaration
1954719 Form Autofill Only call isAutofillAddressesAvailableInCountry in isRecordCreatable when country entry exists in record
1954818 General Add-ons signed before February 2018 are disabled
1954819 Crash Reporting Glean crash ping stack traces are missing the crashing thread index
1954934 Add-ons Manager Verify add-on signatures sooner when relevant after a browser update
1955018 Address Bar Calculator: Make Formatting Rules Consistent for Negative Numbers
1955083 Sync "Connect another device" does not show up in the FxA avatar toolbar when enrolled in new exp
1955111 Privacy Remove biometric auth from settings
1955505 Application Update Backout bug 1923376, 1917536 from 137
1952213 N/A N/A
  1. OOM | small (16.28%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (11.16%) Top crash 1472062
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext (7.91%) 1949316
  4. googleinput_hi.ime (1.86%)
  5. mio::sys::windows::named_pipe::read_done (1.86%) 1916629
  6. shutdownhang | mozilla::SpinEventLoopUntil | mozilla::net::nsHttpConnectionMgr::Shutdown (1.86%) 1633342
  7. shutdownhang | mozilla::SpinEventLoopUntil | nsThreadPool::ShutdownWithTimeout (1.86%) 1895110
Uplifts and Backouts
Bug Component Summary
1947277 Messaging System Prevent opening new windows when policy notification via the messaging system is in progress
1949271 Messaging System Saved Tab Groups message for users who do not have SessionRestore enabled
1952870 Logins Cannot access Saved password when only pattern/PIN is set to lock the device
1954323 JavaScript: Internationalization API TikTok Nearly Unusable on Firefox 136+
1954956 Layout DevTools toolbox no longer appears in DOM fullscreen mode
1955054 Performance migrate windows10 speedometer3 from windows v1803 -> v2009
1955158 Layout: Scrolling and Overflow Make the new __visual__ scroll-into-view to position:fixed frames stuff behind pref
1955621 Tabbed Browser Make the tabGroups.enabled Nimbus feature variable use setPref instead of fallbackPref
1955818 Tabbed Browser Tab group suggestions no longer appear in the address bar with browser.tabs.groups.enabled manually set to true (works when enabled via Nimbus)

Last beta shipped

Uplifts and Backouts
Bug Component Summary
1871578 Graphics Intermittent gfx/tests/reftest/1845828-1.html == gfx/tests/reftest/1845828-1-ref.html | single tracking bug
1953430 Audio/Video: GMP Update GMP fallback downloader for OpenH264 2.6.0
1955388 Tabbed Browser Possible to break pinned tabs out of bounds after opening Firefox View (Ensure #moveTabNextTo doesn't mix pinned tabs with unpinned tabs)
1955556 Places Intermittent SUMMARY: AddressSanitizer: SEGV /builds/worker/checkouts/gecko/toolkit/components/places/SQLFunctions.cpp:1093:26 in create
1955929 Panning and Zooming Perma [tier 2] /builds/worker/checkouts/gecko/gfx/layers/apz/test/mochitest/test_group_zoomToFocusedInput.html:32 | Trailing whitespace (file-whitespace)