Current Desktop beta cycle: 136

Uplifts by Product
124 uplifts

  1. InitializeNSSWithFallbacks (12.70%) Top crash 1834770
  2. OOM | small (6.35%) Known top crash
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::TraceEdgeInternal (6.35%) 1472062
  4. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (4.76%) 1472062
  5. alloc::vec::Vec<T>::as_slice (4.76%)
  6. sqlite3MallocInit (4.76%)
  7. AsyncShutdownTimeout | AddonManager: Waiting to start provider shutdown. | AddonRepository Background Updater (3.17%) 1841444
Uplifts and Backouts
Bug Component Summary
1917536 N/A N/A
  1. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (13.57%) Top crash 1472062
  2. OOM | small (12.14%) Known top crash
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext (4.29%) 1949316
  4. AsyncShutdownTimeout | IOUtils: waiting for profileBeforeChange IO to complete | JSON store: writing data for 'targeting.snapshot' (3.57%) 1877111
  5. mozilla::dom::CustomElementRegistry::RunCustomElementCreationCallback::Run (2.86%)
  6. AsyncShutdownTimeout | AddonManager: Waiting to start provider shutdown. | AddonRepository Background Updater (2.14%) 1841444
  7. XREMain::XRE_main (2.14%) 1909700
Uplifts and Backouts
Bug Component Summary
1932549 Theme [win10] App Menu options are not visible when hovered with High Contrast#1 Windows theme and Firefox System theme
1944784 Crash Reporting Minidump DumperError only contains the letter 'E', 'F', 'N' or 'W'
1945039 New Tab Page Some Thunderbird test failures after bug 1937178 - NewTabUtils.sys.mjs needs some pref fallbacks
1945440 Tabbed Browser Dragging tabs is broken in right-to-left mode
1944126 N/A N/A
1922889 N/A N/A
  1. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (17.25%) Top crash 1472062
  2. OOM | small (12.16%) Known top crash
  3. AsyncShutdownTimeout | IOUtils: waiting for profileBeforeChange IO to complete | JSON store: writing data for 'targeting.snapshot' (3.14%) 1877111
  4. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext (3.14%) 1949316
  5. RtlpWaitOnCriticalSection | RtlpEnterCriticalSectionContended | RtlEnterCriticalSection | sctp_inpcb_free | sctp_close (1.96%) 1776143
  6. mozilla::dom::CustomElementRegistry::RunCustomElementCreationCallback::Run (1.96%)
  7. AsyncShutdownTimeout | AddonManager: Waiting to start provider shutdown. | AddonRepository Background Updater (1.57%) 1841444
Uplifts and Backouts
Bug Component Summary
1942810 Permission Manager Remote Permission Service isn't being initialized on initial profile launch
1943951 Storage: IndexedDB Crash in [@ mozilla::ipc::PortLink::SendMessage | IPC_Message_Name=PBackgroundIDBRequest::Msg___delete__]
1944566 Data Sanitization "search and form history" no longer auto-cleared on shutdown
1944576 Sidebar Perma [tier 2] a11y browser/components/sidebar/tests/browser/browser_glean_sidebar.js | Interactive elements must be labeled: id: , tagName: button, className: -
1944842 Sidebar Sidebar can get into scenario where it's expanded but vertical tabs aren't showing labels
1945058 Places Bookmarks sidebar CSP blocks img-src data: URL
1945261 WebRTC: Signaling Support dependency descriptor RTP extension
1945535 JavaScript: Internationalization API Update to tzdata2025a
1945596 Networking: HTTP Firefox should be still sending headers even if there are missing ones
1945870 General Rename extension-scripts to extension-store-userScripts
1945929 New Tab Page Newtab shortcuts refresh title hover break on word and not all
1938451 N/A N/A
1940716 N/A N/A
1938471 N/A N/A
1944313 N/A N/A
  1. OOM | small (17.41%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (11.34%) Top crash 1472062
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::TraceEdgeInternal (4.86%) 1472062
  4. js::gc::detail::ChunkPtrHasStoreBuffer (3.24%) 1940438
  5. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::StoreBuffer::WholeCellBuffer::putDontCheckLast (2.83%)
  6. nsTSubstring<T>::AssertValid | nsTSubstring<T>::FinishBulkWriteImpl | nsTSubstring<T>::Assign | nsTSubstring<T>::Assign | nsTSubstring<T>::Assign | nsTSubstring<T>::operator= | mozilla::net::nsStandardURL::GetSpec (2.43%)
  7. AsyncShutdownTimeout | AddonManager: Waiting to start provider shutdown. | AddonRepository Background Updater (2.02%) 1841444
Uplifts and Backouts
Bug Component Summary
1930868 Experimentation and Telemetry [Nimbus] Studies should be toggled back on after re-enabling Telemetry
1938261 Machine Learning AI chatbot shortcut should be disabled if AI chatbot feature is turned off
1941380 MFBT Crash in [@ nsTSubstring<T>::AppendPrintf | mozilla::dom::ProcessArguments] with console.log("%.200f", 1)
1945880 Top Sites Update refresh frequency for sponsored top sites
1945882 Experimentation and Telemetry Remove extra usage reporting ping being sent with baseline ping
1946386 General Remove extra usage reporting ping being sent with baseline ping
1946647 Toolbars and Customization Panic button: icons for "Open a new clean Window" and "Delete Recent History" are backwards
1946705 DOM: Security Strip query and ref from chrome: and resource: URLs when sanitizing with FilenameToFilenameType
1942881 N/A N/A
  1. OOM | small (15.80%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (7.77%) 1472062
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext (4.53%) 1949316
  4. nsTArray_Impl<T>::DestructRange | nsTArray_Impl<T>::RemoveElementsAtUnsafe | nsTArray_Impl<T>::RemoveElement<T> | nsTArray_Impl<T>::RemoveElement | mozilla::dom::MediaTrackList::RemoveTrack (3.89%)
  5. mozilla::dom::AbstractRange::UpdateCommonAncestorIfNecessary (3.37%) 1921691
  6. TppRaiseInvalidParameter | TppAllocAlpcCompletion (2.59%) 1943922
  7. XREMain::XRE_main (2.07%) 1909700
Uplifts and Backouts
Bug Component Summary
1919102 Disability Access APIs Ship ARIA elements reflection
1941838 Graphics: WebRender Hit MOZ_CRASH(Bad Prim render task size: 0x400) at gfx/wr/webrender/src/render_task.rs:1071
1942194 Glean: SDK Implement a `onboarding-opt-out` ping to count technical and usage telemetry opt outs during onboarding
1942314 Sidebar Sidebar still showing on popup windows when sidebar.revamp is on
1942339 Messaging System Add Special Message Action to send onboarding-opt-out ping
1944663 Telemetry 0.18% installer size (OSX) regression on Tue January 21 2025
1944718 New Tab Page NTP body content shifts when scrolling up with browser.newtabpage.activity-stream.showSearch = false
1944817 History The history tab is not displayed when long-pressing on Android back button
1945041 Graphics: WebRender 49.96 - 2.11% google-slides powerUsage_gpu / google-slides PerceptualSpeedIndex + 6 more (Windows) regression on Wed January 29 2025
1945290 Telemetry Make `TelemetryReportingPolicy` more async
1945291 Messaging System Make `preonboarding` feature be `isEarlyStartup: true`
1945672 Telemetry Allow Nimbus feature to control datareporting policy notification
1945804 New Tab Page The “Save to Pocket”, “Archive in Pocket” and “Delete from Pocket” context menu items are still displayed while the Pocket extension is disabled and grid cards layout is enabled
1946156 Search Firefox 135.0 Broken (Searching, Drop-Downs, and Homepage Affected)
1946431 Messaging System Update about dialog links
1946461 DOM: Events Crash in [@ mozilla::PresShell::GetRootFrame]
1946476 Settings add learn more links to settings page in existing style
1946517 Messaging System Prevent URL bar from showing through preonboarding modal
1946589 Sidebar Vertical pinned tabs can be closed by clicking the top left corner
1946609 Sync Record exposure event for new treatment of showing the user when sync is disabled
1946619 New Tab Page Reduce spacing around content sections work
1947195 New Tab Page Newtab showWeather has Nimbus setup prefs mismatch
1941137 N/A N/A
1866661 N/A N/A
1946105 N/A N/A
1946551 N/A N/A
  1. OOM | small (13.38%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (10.72%) Top crash 1472062
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext (4.85%) 1949316
  4. js::gc::detail::ChunkPtrHasStoreBuffer (2.24%) 1940438
  5. mozilla::dom::Selection::SelectFrames (2.15%) 1907464
  6. mozilla::RestyleManager::ElementStateChanged (1.65%) 1936213
  7. OOM | large | mozilla::JSHolderMap::Put (1.27%) 1892171
Uplifts and Backouts
Bug Component Summary
1901120 General Fenix doesn't set `schemelessInput` in load info correctly
1908583 DOM: Selection Intermittent selection/1478604.html == selection/1478604-ref.html | single tracking bug
1912571 DOM: Selection Frequent selection/disabled-1.html == selection/disabled-1-ref.html | single tracking bug
1934634 General Publish Linux/AArch64 builds for release, beta, and devedition
1936749 Other Crash in [@ CxxThrowException | MpDetoursHookAll]
1943264 Places Periodically mark origins with no recent visits to be recalculated
1943814 Tabbed Browser Opening link in new tab won't show next to your current tab after moving tab with Ctrl+Shift+Page Up/Down.
1944364 WebExtensions "Report broken site" is available in the "Extensions" menu when it shouldn't
1944440 General Set up bouncer-check for complete builds on esr 140.0
1944910 Sidebar Hide sidebar main element when "hide-sidebar" is selected in vertical tabs mode.
1945107 Downloads Fenix crashes when downloading a file with a very long extension
1945146 Tabbed Browser List all tabs no longer automatically scrolls to current tab
1945639 Messaging System Adding Solo to More from Mozilla - Add card
1945729 Pocket Update sponsored content impressions when shown
1945788 Tabbed Browser Dragging multiple tabs is broken in right-to-left mode
1945927 Sidebar Resizing the sidebar is broken after toggling sidebar on and off
1945930 Sidebar Hide the sidebar launcher splitter when vertical tabs is disabled.
1946099 Machine Learning Unclear how to disable GenAI / "Ask" context menu after selecting a chatbot provider with old sidebar
1946225 QR Remove newline characters when sanitizing URLs
1946266 Pocket Perform Glean logging for click and impression of MARS sponsored content
1946345 Pocket Delete Pocket profile on enrolment of the MARS API
1946445 Inspector: Rules Declaration after nested rule appears in its parent rule
1946899 Layout: Scrolling and Overflow Problem scrolling to empty absolutely positioned element in Firefox 135
1947140 JavaScript Engine: JIT A bug in JIT optimization: an exception about '>=' operator
1947503 Session Restore SessionStore can NOT open closed windows that was saved before Firefox 135
1947592 Layout: Scrolling and Overflow Add a reftest for bug 1936563
1947610 Relay Telemetry does not send "opt_in_panel" "enabled" event
1947763 Relay Telemetry sends double "opt_in_panel" "enabled" events
1948023 Onboarding Ensure the opt-out ping is sent when telemetry is disabled
1908488 N/A N/A
1947510 N/A N/A
1947317 N/A N/A
1944063 N/A N/A
1947281 N/A N/A
  1. OOM | small (14.27%) Known top crash
  2. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (12.22%) Top crash 1472062
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::TraceEdgeInternal (5.55%) 1472062
  4. js::gc::detail::ChunkPtrHasStoreBuffer (2.94%) 1940438
  5. js::gc::HeaderWord::get (1.72%) 1948635
  6. nsGlobalWindowInner::ClearDocumentDependentSlots (1.50%) 1803675
  7. OOM | large | mozilla::JSHolderMap::Put (1.44%) 1892171
Uplifts and Backouts
Bug Component Summary
1944513 General avoid symbol visibility issues for getauxval()
1944931 Sidebar When initally enabling Vertical tabs in about:preferences, the "Show sidebar" option is checked by default but the sidebar is hiding when toggled
1946593 Disability Access APIs Setting disabled on input should not dispatch EDITABLE state change
1946865 App Links Always open links in apps checkbox should not be shown in private tabs
1946868 Toolbars and Customization Remove "Turn on/off Vertical Tabs" in the tab context menu
1948032 Settings Enable data-deletion request before sending it on Fenix
1948033 General Enable data-deletion request before sending it on Focus
1948074 New Tab Page Update IAB Banner Impression event to pass shim.impression
1948136 Crash Reporting Fenix is sending the incorrect versionName to the crash reporting services
1947139 N/A N/A
1946004 N/A N/A
  1. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (14.39%) Top crash 1472062
  2. OOM | small (13.42%) Known top crash
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::UnmarkGrayTracer::onChild (4.54%) 1898308
  4. js::gc::detail::ChunkPtrHasStoreBuffer (2.07%) 1940438
  5. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::Nursery::maybeMoveRawBufferOnPromotion (1.81%) 1472062
  6. js::gc::HeaderWord::get (1.81%) 1948635
  7. mozilla::BounceTrackingProtectionStorage::BlockShutdown (1.62%)
Uplifts and Backouts
Bug Component Summary
1945868 Startup and Profile System 'Create New Profile' button in profile manager (shown if existing profile had been launched with newer Firefox before) does nothing
1947240 Storage Inspector Unable to delete cookies with Domain attributes
1947418 IPC Shared Memory Leak after bug 1927209 (backed out)
1947742 Address Bar Unable to select a Tab group from the Address bar when a Search engine suggestion is displayed
1948492 UI Tests Perma [tier 2] org.mozilla.fenix.ui.SettingsHTTPSOnlyModeTest#httpsOnlyModeEnabledOnlyInPrivateBrowsingTest | java.lang.AssertionError
1948969 Sidebar Put vertical tabs radio buttons behind Nightly for 136
1922357 N/A N/A
  1. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC (14.04%) Top crash 1472062
  2. OOM | small (9.36%) Known top crash
  3. OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | CCGraphBuilder::AddNode (7.60%) 1891902
  4. mozilla::LinkedListElement<T>::setPreviousUnsafe (4.09%) 1892983
  5. js::gc::detail::ChunkPtrHasStoreBuffer (3.51%) 1940438
  6. XREMain::XRE_main (2.63%) 1909700
  7. js::gc::MarkBitmap<T>::markIfUnmarkedAtomic (1.75%) 1917738
Uplifts and Backouts
Bug Component Summary
1944669 IPC Warning "failed to send SIGKILL to process" appears in terminal
1945384 General Failed to install WebCompat webextension : mozilla.components.browser.engine.gecko.webextension.GeckoWebExtensionException
1946446 Messaging System Update about:rights
1947917 Audio/Video: cubeb firefox android 135 audio crackling on any website while playing video or audio
1948037 Address Bar The Non-Sponsored results are duplicated in the Address Bar when typing keywords specific to other enabled contextual suggestions
1949197 Privacy Remove feature-screendetection dependency from recently closed
1949301 Pocket Crop the sponsored content images
1937634 N/A N/A
1869650 N/A N/A
1948717 N/A N/A

Last beta shipped

Uplifts and Backouts
Bug Component Summary
1947248 PDF Viewer UserUnit isn't taken into account when rendering the text layer
1948581 Console Console Network log Response Raw toggle doesn't work anymore
1928334 N/A N/A
1944052 N/A N/A
1948111 N/A N/A