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Nightly builds (crashes and bug fixes)
This is a staging environment for whattrainisitnow.com

«  Tuesday, August 26, 2025 

#

Outstanding bugs
Bug Component Impact Summary
1316188 General 7
priority 3
severity 2
type 2
[geckoview] Fix Javadoc warnings and errors in mobile/android/geckoview
1628016 Address Bar 7
priority 3
severity 2
type 1
see_also 1
Rethink provider concurrency in the Urlbar
1824189 XPCOM 4
type 1
see_also 3
Consider adding a non-leaking (fallible) variant of `nsIEventTarget::Dispatch`
1903865 Crash Reporting 1
type 1
Include the Firefox version in the user agent string of the crash reporter
1939561 Spelling Checker: en-US Dictionary 4
type 1
duplicates 2
cc 1
Track new words and corrections to en-US dictionary
1941441 Networking: Cache 7
priority 4
severity 2
type 1
Improve cache with aio API
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.
1971158 Machine Learning 10
priority 4
severity 5
type 1
Vendor llama.cpp
1973509 Layout: Positioned 6
priority 3
severity 2
type 1
Reflow Anchor Positioned frames during the container query pass
1973711 Machine Learning 1
type 1
Add llama.cpp layer
1975267 Machine Learning 6
priority 3
severity 2
type 1
suggest NER from onnx to onnx_native background
1976553 Machine Learning 1
type 1
enable page summarization in nightly and beta
1976784 Machine Learning 1
type 1
Llama.cpp native peformance test
1977630 Layout: Grid 3
severity 2
type 1
[css-grid] Store baseline measurements for each tracks
1978748 Machine Learning 1
type 1
[C++ layer] Enable llama.cpp in JS Engine
1979785 Messaging System 6
priority 5
type 1
[MenuMessage] Additional configuration to make the surface ready for general use
1980392 Graphics: WebGPU 31
priority 5
severity 5
type 2
keywords 2
webcompat 4
cc 1
tracking_firefox144 4
tracking_firefox143 4
tracking_firefox142 4
pro.easyeda.com - PCB editor does not show content
1982032 DOM: Navigation 1
type 1
Add LoadURIOption to force loading as a MediaDocument
1982892 Settings UI 1
type 1
Pass Setting deps and current value to callbacks
1983658 Audio/Video: Playback 1
type 1
Update aom to new version 353c63faba3c3af36430ff168cf5e149b760d42d from 2025-08-21 00:00:00
1984126 JavaScript Engine 1
type 1
Add support to modify Realm time zone
1984496 Relay 1
type 1
Implement improved Relay mask offer UX for ongoing usage
1984788 Documentation 1
type 1
Update the screenshots in documentation for the split console
1984800 Security: PSM 3
type 1
duplicates 2
Update NSS to new version 08d1af6a720ef8b7d64f79f4fc1f29329d504c65 from 2025-08-22 02:51:10
1984978 JavaScript Engine: JIT 1
type 1
Implement {Add,Sub,Mul,Shift}IntPtr for MIPS64 and Loong64
Other bugs
Bug Component Impact Summary
1834395 Graphics: WebGPU 7
priority 3
severity 2
duplicates 2
WebGPU: Support `rgba16float` texture format in `GPUCanvasConfiguration`s
1874365 WebDriver BiDi 9
priority 4
duplicates 4
see_also 1
Implement the "browsingContext.downloadWillBegin" event
1897187 DOM: Core & HTML 5
severity 2
type 2
see_also 1
visibilitychange event are not reliable for DevTools panel documents
1897765 Netmonitor 11
priority 4
severity 2
type 2
keywords 2
see_also 1
Network requests in background tabs where devtools is open jank the parent process main thread
1932140 WebRTC 4
severity 2
type 2
Permanent failure TEST-UNEXPECTED-FAIL | dom/media/tests/crashtests/1490700.html | load failed: timed out waiting for reftest-wait to be removed with macOS 14.70 on x86-64
1941723 Disability Access APIs 9
severity 5
type 2
keywords 2
VoiceOver is not announcing the fieldset text linked via aria-describedby.
1951751 Layout: Grid 6
severity 2
type 2
duplicates 2
[css-grid] Use the correct items for calculating the grid baseline
1961289 Bookmarks 7
severity 2
type 2
keywords 2
see_also 1
[Bookmarks Evolution] Close button on a sub-directory view is closing the whole bookmarks view and app menu
1967652 Audio/Video: Playback 8
priority 4
severity 2
type 2
Report MP4TrackDemuxer failure rather than leaving the media element waiting for data
1967785 WebDriver BiDi 7
priority 3
severity 2
type 2
NetworkDecodedBodySizeMap can throw if called after destroy
1969503 UI Widgets 0
Create code connect for the fieldset component
1969980 General -2
regressions -2
Remove 24 snackbars marked for removal
1970598 WebDriver BiDi 7
priority 3
severity 2
type 2
Frequent error "WeakMap key undefined must be an object" in WindowManager
1971376 Design System and Theming 5
priority 4
see_also 1
Upstream `SelectableChip` component to Android Components
1971392 CSS Parsing and Computation 6
priority 1
severity 1
type 2
duplicates 2
Perma /css/CSS2/generated-content/quotes-applies-to-<00x>..xht | Testing http://web-platform.test:8000/css/CSS2/generated-content/quotes-applies-to-001.xht == | single tracking bug
1971409 Tabs 5
priority 5
[Tab Management Phase 1] Update the appearance of the Synced Tabs page
1971410 Tabs 0
[Tab Management Phase 1] Add icons to the new 3 dot menu
1971719 DOM: Security 3
type 2
see_also 1
Strip username:password from URL in CSP reports
1973781 Design System and Theming 0
Migrate the TextButton reusable component to use the M3 button color defaults
1973829 Design System and Theming 0
Replace the TextButtons in Bookmarks to use our reusable component
1973836 Design System and Theming 2
duplicates 2
Remove R.drawable.ic_new and replace its usages with mozac_ic_plus_24
1974519 JavaScript Engine 4
priority 4
Preserve DOM Wrappers from JIT code
1975105 Networking 1
priority 1
Typo in log message in nsHttpConnection.cpp
1975959 Settings 4
severity 2
type 2
Certificate authority name can be trimmed in Unified Trust Panel
1977708 General 3
severity 1
type 2
Many duplicate entries shown in the "Libraries that we use" screen
1978016 Graphics: ImageLib 0
Update highway to 1.3.0
1978338 General 4
priority 4
Update Isolated Process Testing Tier Levels
1978558 Autofill 0
Composify the address editor
1978615 Widget: Gtk 7
priority 3
type 2
keywords 2
[wayland] Context menus sometimes briefly show/flash underlying window when first drawn
1980274 Shell Integration 5
priority 3
severity 2
Minimally display the tab's icon and audio state in Taskbar Tab windows
1980647 Tabs 0
[Tab Management Phase 1] Update the Multi-select Tabs Tray Banner action items
1980812 Networking 10
priority 4
severity 2
type 2
perf_impact 1
see_also 1
Websites take way too long to load
1981040 WebRTC 15
priority 4
severity 5
type 2
keywords 2
duplicates 2
New fields in RTCIceCandidatePairStats do not match WebRTC spec
1981212 Tabs 4
severity 2
type 2
Links from History, Bookmarks and Synced tabs menus don't open in the current tab when "Homepage as a new tab" is enabled
1981860 Tabbed Browser 8
severity 2
type 2
keywords 2
duplicates 2
Tab drag bounds are incorrect
1981968 UI Widgets 4
priority 3
see_also 1
moz-input-{text,search} value attribute is a bit footgunny.
1982319 Address Bar 8
priority 4
severity 2
type 2
The market Opt In section doesn’t adjust to the browser’s Dark Theme
1982432 General 10
priority 5
severity 2
type 2
see_also 1
WebCompatReporterSubmissionMiddlewareTests passing even when the assertions in testBeforeNextSubmit should be failing
1982436 General 9
priority 5
severity 2
type 2
`WHEN the report is sent successfully THEN appState is updated`() test in `WebCompatReporterSubmissionMiddlewareTest.kt` missing Test annotation
1982440 WebRTC: Audio/Video 10
priority 4
severity 2
type 2
keywords 2
Camera resolution is downscaling when it shouldn't (with resizeMode: "none")
1982450 Tabbed Browser 0
Add test coverage for dragging to pin and unpin tabs
1982644 UI Widgets 0
Relink code connect for the Label component
1982654 General 2
duplicates 2
Fix Javadoc "warning: no comment" warnings
1982662 MFBT 0
Use std::default_delete instead of mozilla::DefaultDelete
1982664 MFBT 0
Use std::make_unique_ptr instead of mozilla::MakeUniquePtr
1982740 Tabs 5
priority 5
[Tab Management Phase 1] Add Nimbus support for enabling/disabling the Tab Manager in Nightly and Beta
1982925 Toolbar 0
Remove 'More' menu item after expanding
1983052 New Tab Page 0
[GENAI-1244] Move smart shortcuts to promise worker, add seasonality features to smart shortcuts
1983056 Settings 4
severity 2
type 2
[Unified Trust Panel] When ETP is turned OFF, the "Trackers blocked" section doesn't automatically update
1983067 Settings 7
severity 5
type 2
[Unified Trust Panel] The Unified Trust Panel is not available in custom tabs
1983077 Address Bar 5
priority 5
Use RESULT_TYPE.SEARCH instead of URL suggestions for important dates
1983101 DOM: Credential Management 4
type 2
keywords 2
Crash [@ Id]
1983224 Toolchains 2
type 2
CXX11 ABI is not aligned between clang and the Firefox build system
1983260 Toolbar 0
Support user avatar in menu
1983293 Tooling 1
see_also 1
Add a detekt rule to forbid some lint suppressions
1983311 WebDriver BiDi 0
Perma Android TEST-UNEXPECTED-TIMEOUT | /webdriver/tests/bidi/browsing_context/reload/wait.py | expected OK
1983415 Toolbar 2
type 2
[Menu Redesign 2025] "Make Firefox your default" banner should stay visible until Firefox is the default browser or dismissed by the user.
1983551 Settings 3
severity 1
type 2
[Unified Trust Panel] No checkmark is shown within the shield icon for the trackers section
1983606 General 0
Replace remaining Cu.now() callls with ChromeUtils.now()
1983894 Profile Backup 5
priority 5
Don't back up cookies
1983903 Downloads 3
severity 1
type 2
[Bookmarks Evolution] Selected state checkmark and header text and icon buttons have low color contrast on downloads screen
1983967 Messaging System 3
priority 3
Remove obsolete references to browser.privatebrowsing.vpnpromourl
1984059 web-platform-tests 0
Update web-platform-tests to cb96a34d90f80b72be93211fe65926c59acfefdd
1984102 XPCOM 0
Consider re-introducing some of the AutoTArray-specific optimizations in nsTArray
1984115 DOM: Notifications 0
Perma [tier 2] /notifications/cross-origin-nested.tentative.https.sub.html | nested first party worker - assert_true: notification should be shown expected true got false | single tracking bug
1984138 General 0
Only visit image/test/fuzzing under --enable-tests
1984217 Panning and Zooming 3
priority 3
Set scroll offset to exact destination for all smooth scroll animation kinds
1984245 New Tab Page 0
Remove dependency on `extensions.pocket...` prefs on New Tab
1984290 Audio/Video: cubeb 4
type 2
keywords 2
Update cubeb-rs to 0.30.1 (and cubeb-pulse-rs, cubeb-coreaudio-rs, audioipc)
1984339 IP Protection 8
priority 4
severity 2
type 2
VPN is turned OFF when move to Overflow menu
1984391 Toolbar 0
Use the composable toolbar in Nightly by default and allow it in beta and release also
1984428 Graphics: WebRender 0
WebRender: Upstream additional MallocSizeOf derives from Servo
1984498 WebRTC 0
Remove libwebrtc patch-stack changes for tools/ directory
1984500 DOM: Content Processes 0
Remove dom.ipc.processPrelaunch.startupDelayMs pref
1984601 Inspector: Rules 0
Copy/pasting a rule containing `var()` will add linebreak (for each jump to definition ↱ icon)
1984676 IP Protection 7
severity 5
type 2
Firefox VPN cannot be turned ON
1984723 WebRTC 0
upstream libwebrtc commit 3cc68ec32e should allow removing a patch from our patch-stack
1984733 IP Protection 3
priority 3
Add debug logging for IPProtection
1984740 web-platform-tests 0
Perma [tier 2] /fedcm/fedcm-login-status/cross-origin-status.https.html | Status header should be ignored from cross-site iframe that contains a subresource with the header - expected NOTRUN | single tracking bug
1984799 Graphics: WebGPU 5
priority 5
Update WebGPU CTS to new version 0fb20da2efe90a2c38228709038f97b565dfc85c from 2025-08-22 16:15:27
1984818 JavaScript Engine 0
Improve the GetFuseState testing function
1984823 Widget: Gtk 0
Firefox 142 crashes on launch with certain KDE window decorations
1984837 Tabs 0
Use fillMaxWidth() instead of fillMaxSize() in TabsTrayBanner
1984840 General 0
Replace deprecated SheetState usage with rememberModalBottomSheetState
1984866 WebDriver BiDi 9
priority 3
severity 2
type 2
keywords 2
JS error while running pdf.js unit tests: "TypeError: can't access property Symbol.iterator, this[#collectedNetworkData] is null"
1984876 Networking 0
Crash in [@ mozilla::detail::nsTStringRepr<T>::First | HostIgnoredByProxy]
1984884 Printing: Output 0
After update 142.0, problem with printing the selection menu in html "select name" only an empty frame is displayed.
1984919 Privacy: Anti-Tracking 7
priority 3
severity 2
type 2
extract_rfp_targets.py regex fails when there's no whitespcae between the target name and the comman
1984953 WebDriver BiDi 7
priority 3
severity 2
type 2
Log pollution from content process module events after Session is destroyed
1984955 JavaScript Engine 0
Remove workarounds for old compilers
1984962 Searchfox 2
type 2
Don't make android build MOZILLA_OFFICIAL
1984964 Graphics 2
type 2
Clean up nsSize a bit.
1984971 MFBT 0
Use appropriate type instead of std::integral<bool, ...>
1984981 Toolbar 9
priority 4
severity 2
type 2
see_also 1
[composable toolbar] Tapping on the loaded URL doesn't display the keyboard when trending / recent searches are enabled
1985001 Glean: SDK 7
priority 5
type 2
Pings following another ping's schedule don't get submitted if said ping is disabled
1985007 Tooling 0
Refactor BrowserIconsTest to remove MainCoroutineRule
1985013 Audio/Video: Playback 4
priority 1
severity 1
type 2
Perma /webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hsla.html | single tracking bug
1985020 General 0
enable wdspec tests on android 14 emulator
1985025 Tooling 0
Refactor TranslationsMiddlewareTest to remove MainCoroutineRule
1985050 General 0
Cleanups in AC/Fenix/Focus code now that minSdkVersion is 26
1985077 Glean: SDK 5
priority 5
Release and land Glean v65.0.2
1985103 Crash Reporting 0
Update Sentry to version 8.20.0
1985108 WebRTC 0
libwebrtc patches for clang8/gcc8 can be removed now that our minimums are clang17/gcc10
1985110 WebRTC 0
Remove libwebrtc patches for testing directory
1985133 Networking 3
priority 3
Remove unused ioService access in HttpChannelParent::DoAsyncOpen
1985160 Installer 8
priority 4
severity 2
type 2
Disable desktop launcher
1985164 Audio/Video: Playback 7
priority 5
duplicates 2
Update nestegg to ec6adfbbf979678e3058cc4695257366f39e290b
1985169 Telemetry 0
Add localization comment for about-glean-label-for-filter-metrics
1985175 Tooling 0
Update Robolectric to version 4.16
1985177 IP Protection 7
priority 3
severity 2
type 2
Update ipProtection enabled Nimbus variable to set the user branch pref
  1. js::gc::HeaderWord::get (12.96%) Top crash 1948635
  2. js::SlimLinkedListElement<T>::insertListAfter (11.73%) Top crash 1985172
  3. alloc::vec::Vec<T>::push (6.17%)
  4. js::InternalBarrierMethods<T>::isMarkable (4.32%)
  5. IPCError-browser | ShutDownKill (3.09%) Known top crash
  6. AsyncShutdownTimeout | IOUtils: waiting for sendTelemetry IO to complete | TelemetryController: shutting down (2.47%)
  7. AsyncShutdownTimeout | profile-change-teardown | ServiceWorkerShutdownBlocker: shutting down Service Workers (2.47%)
  8. EnterJit (2.47%)
  9. OOM | small (2.47%) Known top crash
  10. XREMain::XRE_main (2.47%)
  11. OOM | unknown | NS_ABORT_OOM | mozilla::dom::Promise::CreateInfallible | mozilla::dom::ReadableStreamDefaultReader::Read (1.85%)
  12. mozilla::MozPromise<T>::ThenValueBase::ResolveOrRejectRunnable::~ResolveOrRejectRunnable (1.85%)
  13. mozilla::net::nsSocketTransportService::AttachSocket (1.85%)
  14. mozilla::widget::WlLogHandler (1.85%)
  15. shutdownhang | mozilla::RWLock::WriteLock (1.85%)
  16. AllocInfo::GetInChunk (1.23%)
  17. IPCError-browser | GPUProcessKill (1.23%)
  18. OOM | large | NS_ABORT_OOM | nsTArray_Impl<T>::AssignInternal | nsTArray_Impl<T>::Assign | CopyableTArray<T>::CopyableTArray (1.23%)
  19. SetEvent | igd10iumd64.dll | new (1.23%)
  20. js::EnumFlags<T>::hasAnyFlag (1.23%)