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

«  Wednesday, September 17, 2025 

#

Outstanding bugs
Bug Component Impact Summary
1945252 General 6
priority 5
type 1
[Gecko iOS] Land remaining changes from Cedar on mozilla-central
1973796 IPC 1
type 1
Perform mach port check-in async
1974389 Privacy: Anti-Tracking 5
priority 4
type 1
Update the settings UI for third-party tracker cookie blocking
1986070 New Tab Page -1
type 1
regressions -2
New Tab display: none initial load of Customize Menu
1986781 Machine Learning 6
priority 5
type 1
Page buddy is page readable
1987312 JavaScript Engine 11
priority 4
type 1
duplicates 6
Update irregexp to new version b5aa4c8b718d75f9cf4d4afd635ffd217f0acb38 from 2025-09-07 00:00:00
1988603 DOM: Core & HTML 3
priority 2
type 1
Add a new bytecode cache strategy pref option that caches bytecode after 2 loads
1988612 Security: PSM 6
priority 5
type 1
Enable CRLite on mobile
1988784 General 5
priority 4
type 1
Vet app-services crates
1988844 General 1
type 1
Update android nightly application-services version bump to new version f310b68058c6076ab7ccc3cfa6ca2ac81af6cb72 from 2025-09-16 17:40:26
Other bugs
Bug Component Impact Summary
1598487 Layout 10
priority 4
severity 2
type 2
see_also 2
Use layout viewport size (i.e. not ICB, the size expanded by minimums-scale) for window.innerHeight
1707808 Inspector: Layout 7
priority 3
severity 2
type 2
Use getGridContainerType instead of reading style.gridTemplateRows/Columns
1858891 DOM: Networking 4
priority 1
severity 1
type 2
Intermittent dom/tests/mochitest/fetch/test_fetch_cors.html | single tracking bug
1884148 JavaScript Engine 4
priority 4
Ship the Atomics.waitAsync proposal
1910694 Session Restore 9
priority 3
severity 2
type 2
duplicates 2
Session Restore log files will not get updated or deleted if the browser is not restarted.
1958394 CSS Parsing and Computation 4
severity 2
type 2
Make sure we can capture offscreen view transition targets
1967770 Bookmarks 6
severity 2
type 2
duplicates 2
Show error when adding "invalid URL" to the bookmarks
1968297 Widget: Win32 6
severity 2
type 2
keywords 2
Windows taskbar screenshots are not rendered for restored window until it gets focus
1971088 Lint and Formatting 3
priority 3
Update documentation about ESLint environments
1975653 Site Reports 11
priority 4
severity 1
type 2
webcompat 4
hlo.tohotheater.jp - Zoom does not work correctly on seat reservation (layerX/layerY inside transform)
1979118 Lint and Formatting 1
see_also 1
Add a Stylelint rule to enforce using border-color tokens
1980240 Tabbed Browser 5
priority 4
severity 1
Move drag and drop code out of tabs.js
1982089 Machine Learning 7
severity 2
type 2
keywords 2
see_also 1
[GenAI Chat Sidebar] Visually hidden text on the provider selector radio buttons is exposed to assistive technology
1983139 Toolchains 0
old hacks for emulators still exist in tree- we can remove these when we are on the updated Android 14 emulator
1983938 Lint and Formatting 0
Update usage of border-radius to use design token values
1984124 Tooling 0
Update Kotlin to version 2.2.20
1984744 New Tab Page 5
priority 5
Add telemetry for how many shortcuts are visible
1985364 Tabs 7
priority 5
duplicates 2
[Tab Management Phase 1] Remove lingering Acorn color tokens from the redesign
1986837 Layout: Text and Fonts 2
duplicates 2
Add autospace for text across inline element boundaries on the same line
1987171 Toolchains 5
type 2
keywords 3
6.56% perf_reftest_singletons input-type-number-setAttribute.html (Linux) regression on Thu August 28 2025
1987270 Lint and Formatting 3
severity 1
type 2
Modules exclusively imported with importESModule aren't added to gecko module definitions
1987272 Preferences 5
priority 5
Move the contents of preferencesBindings.js into ESM for better type support in the future
1987317 Startup and Profile System 2
type 2
Firefox won't launch a profile if the library of that profile is open
1987325 Mochitest 2
type 2
Crashes and incomplete mochitests are ignored when running with optimized Geckoview on Android
1987505 General -2
regressions -2
Solve why GTest and cppunittests will sometimes go into a perma-fail state
1987794 Settings 0
Change "Save and Sync data" strings on Legacy Menu Version
1987807 XPCOM 6
priority 1
severity 1
type 2
keywords 2
Frequent application crashed [None] | xpcom/tests/unit/test_windows_onedrive_registry.js | single tracking bug
1988047 WebRTC 0
Error messaging is poor when generating gn configs fails
1988052 General 3
priority 3
Use the category manager to initialize RemoteSecuritySettings
1988118 Networking: DNS 8
priority 4
severity 2
type 2
Nimbus settings for DoH in Fenix do not appear to be removed after un-enrollement (bis)
1988156 DOM: CSS Object Model 0
WPT failure of CSS modules in /fetch/api/request/destination/fetch-destination.https.html
1988190 Toolbar 5
severity 2
duplicates 2
see_also 1
[toolbar redesign] Show navigation buttons even if expanded mode is not enabled
1988252 JavaScript Engine: JIT 8
priority 5
severity 1
type 2
Assertion failure: script->length() <= JitOptions.ionMaxScriptSize, at /builds/worker/checkouts/gecko/js/src/jit/TrialInlining.cpp:69
1988279 Translations 0
Reduce Initial Translations WASM Memory
1988281 Task Configuration 4
priority 1
severity 1
type 2
Perma XPC Linux asan/tsan No checks run. on toolkit/mozapps/update/tests/unit_background_update/xpcshell.toml | single tracking bug
1988360 Toolbar 4
severity 2
type 2
[Toolbar redesign] Bookmark star button does not respect Figma design
1988392 Graphics: WebGPU 5
priority 5
Update WebGPU CTS to new version 18f1cc77dea7254258eeee21839d1c249b506576 from 2025-09-11 00:47:45
1988444 Logins 2
type 2
Use state object instead of variable in BiometricAuhenticationHelper
1988457 Layout: Positioned 7
priority 3
severity 2
type 2
Remove the `availISize == -1` check from ReflowAbsoluteFrame()
1988619 New Tab Page 12
priority 5
severity 5
type 2
MREC (rectangle) ad format has the wrong font color when Settings and Add-ons themes conflict
1988658 Graphics: WebRender 0
Fix WR debugger when multiple WR instances are started
1988672 New Tab Page 0
Lists widget - add tests for cancelling list creation when pressing ESC
1988813 IP Protection 11
priority 4
severity 5
type 2
Use isSignedIn when checking against the IPProtectionService
1988845 Translations 0
split mochitest-translations to sub manifests and extend the win/debug maxruntime
1988876 General 6
priority 3
severity 1
type 2
Update RELATIVEDIR documentation
  1. wgpu_hal::dx12::shader_compilation::dxc_create_instance (31.58%) Top crash
  2. libavutil.so.59 (15.79%) Top crash
  3. dwrote::font_family::FontFamily::get_first_matching_font (10.53%) Top crash
  4. AsyncShutdownTimeout | AddonManager: Waiting to start provider shutdown. | AddonRepository Background Updater (5.26%)
  5. AsyncShutdownTimeout | profile-before-change | Sqlite.sys.mjs shutdown blocker (5.26%)
  6. AsyncShutdownTimeout | profile-change-teardown | ServiceWorkerShutdownBlocker: shutting down Service Workers (5.26%)
  7. RaiseFailFastException | FailFastWithHR (5.26%)
  8. SetEvent | <unknown in igd10iumd64.dll> | CGeometryShader::CLS::FinalConstruct (5.26%)
  9. cubeb_coreaudio::backend::create_stream_description (5.26%)
  10. js::ObjectSlots::isSharedEmptySlots (5.26%)
  11. stackoverflow | mozilla::dom::Element::BindToTree (5.26%)