Bug 1702033 R[Core:Audio/Video]Dead nsGlobalWindowOuter::mAudioMuted.
Bug 1699905 A[Core:CSS Transitions and Animations]Perma TEST-UNEXPECTED-PASS | /css/css-animations/nested-scale-animations.html when Gecko 88 merges to Beta on 2021-03-22
Bug 1700799 R[Core:Canvas: WebGL]WebGL context creation fails under llvmpipe
Bug 1700463 R[Core:DOM: Bindings (WebIDL)]"error: incomplete type 'mozilla::dom::Document' used in type trait expression" unified binding build bustage with --disable-accessibility
Bug 1701789 R[Core:DOM: Core & HTML]Restore UserProximityEvent for KaiOS
Bug 1701824 R[Core:DOM: Core & HTML]Disable ondevicelight attribute behind the flag
Bug 1655988 R[Core:DOM: Editor]Assertion failure: replaceRangeDataAtEnd.StartRef().EqualsOrIsBefore( rangeToDelete.EndRef()), at /builds/worker/checkouts/gecko/editor/libeditor/WSRunObject.cpp:1308
Bug 1700825 R[Core:DOM: Events]Remove or update probes expiring in Firefox 90: HTMLEDITORS_WITH_*
Bug 1699534 R[Core:DOM: Navigation]Ensure beforeunload is called when the next page is coming from bfcache
Bug 1689663 R[Core:DOM: Navigation]Ensure docshell/test/navigation/test_bug1364364.html works with SHIP-BFCache
Bug 1689669 R[Core:DOM: Navigation]Ensure docshell/test/mochitest/test_bug1121701.html works with SHIP-BFCache
Bug 1689686 R[Core:DOM: Navigation]Ensure docshell/test/navigation/test_bug1326251.html works with SHIP-BFCache
Bug 1683131 R[Core:DOM: Networking]Have telemetry probes to measure how much cost would it take to sniff a no-cors and cross-origin response
Bug 1695987 R[Core:DOM: Networking]Collect the size of response bodies that need to be parsed on ORB.
Bug 1700871 R[Core:DOM: UI Events & Focus Handling]submitting a form targetting an iframe results in window changing from background to foreground
Bug 1700888 R[Core:DOM: UI Events & Focus Handling]Autoscroll no longer works on about:* pages (except about:newtab)
Bug 1701807 R[Core:Graphics]1287.53 - 2.63% reddit fcp / twitch PerceptualSpeedIndex + 262 more (Android, Linux, OSX, Windows) regression on Fri March 26 2021
Bug 1700539 R[Core:Graphics: WebRender]Allow negative scale in ScaleOffset type
Bug 1701661 R[Core:Graphics: WebRender]The render task svg dump is backwards
Bug 1701633 R[Core:Graphics: WebRender]Annotate crash reports during gl draw calls with names of bound shaders
Bug 1701236 R[Core:Graphics: WebRender]Disable fallback to basic on desktop by default, preferring Software WebRender
Bug 1662559 R[Core:JavaScript Engine]Change storage for private methods to save space
Bug 1693261 R[Core:JavaScript Engine]Parent completion ordering DFS invariant extension spec change for Top Level Await
Bug 1701904 A[Core:JavaScript Engine]Change GetOwnPropertyDescriptor to return Maybe<PropertyDescriptor>
Bug 1685662 R[Core:JavaScript Engine: JIT][MIPS] Some BigInt related tests failed on mips platform
Bug 1701208 R[Core:JavaScript Engine: JIT]Assertion failure: mir->type() != MIRType::Value, at jit/shared/Lowering-shared-inl.h:27 or Crash [@ ??] with 32-bit and pruning
Bug 1701713 R[Core:JavaScript Engine: JIT]Re-enable recover-objects.js
Bug 1686512 R[Core:Layout][css-pseudo] ::first-letter should include currency
Bug 1701906 R[Core:Layout]Tweak layout/base/tests/test_zoom_restore_bfcache.html to make it pass in Fission
Bug 1698606 A[Core:Layout: Form Controls]Text for date format in input type=date is misplaced
Bug 1701128 R[Core:Layout: Images, Video, and HTML Frames]New wpt failures in /css/css-backgrounds/animations/ [background-color-animation-in-body.html, background-color-transparent-animation-in-body.html]
Bug 1700831 R[Core:Networking]Remove or update probes expiring in Firefox 90: REL_PRELOAD_MISS_RATIO
Bug 1656329 R[Core:Networking: JAR]ThreadSanitizer: data race [@ nsZipArchive::BuildSynthetics] vs. [@ nsZipArchive::GetItem]
Bug 1700702 R[Core:Panning and Zooming]Unexpected overscroll in single-line text fields
Bug 1699868 R[Core:Panning and Zooming]Hit-testing over the overscroll gutter of a subframe is incorrect (non-WebRender edition)
Bug 1701954 R[Core:Performance]Perma dom/tests/mochitest/general/test_interfaces.html | If this is failing: DANGER, are you sure you want to expose the new interface PerformanceEventTiming to all webpages as a property on the window? when Gecko 89 merges to Beta on 2021-04-19
Bug 1682898 R[Core:Performance]Migrate Performance Best Practices for Front-end Engineers MDN page to in-tree docs
Bug 1697836 V[Core:Printing: Setup]Firefox 86: Printing via script can lock up browser tab (invisible print dialog?)
Bug 1701693 R[Core:Sanitizers]Turn off WPT tests with high-volume failures for TSan
Bug 1698942 R[Core:Security: Process Sandboxing]Invalid Win32k use in content process [xul!HasBattery+0x1b]
Bug 1701757 R[Core:Security: Process Sandboxing]Invalid Win32k use in content process [xul!nsClipboard::`dynamic initializer for 'CF_HTML|CF_CUSTOMTYPES']
Bug 1701778 R[Core:Security: Process Sandboxing]Invalid Win32k use in content process [USER32!RegisterWindowMessageW]
Bug 1700051 N[Core:Spelling checker]Reduce accessbility of `mozInlineSpellStatus`'s members
Bug 1698238 A[Core:WebRTC: Audio/Video]initial selectAudioOutput() boilerplate
Bug 1701792 R[Core:Widget]Poor contrast with dark theme on extension disabled buttons with a GTK dark theme.
Bug 1700715 R[Core:Widget: Cocoa]With native context menus enabled, the context menu of the bookmarks toolbar has strange contents (too many items, or duplicate items, or empty items, or all items disabled)
Bug 1700371 A[Core:Widget: Cocoa]Extremely low contrast on stoplight buttons when Firefox is light and system is dark
Bug 1698759 R[Core:Widget: Cocoa]Make bookmarks menu look good in dark mode
Bug 1701182 U[Core:Widget: Gtk][Linux, Wayland, Snap] Firefox 87: clicks do not work & more
Bug 1701825 R[Core:Widget: Gtk]Pass some themed colors even in dark theme
Bug 1701846 R[Core:Widget: Gtk]Make setting overlay scrollbars on GTK do something sane-ish.
Bug 1700885 R[Core:mozglue]Emitted stack traces cause automation problems in fuzzing
Bug 1694849 R[DevTools:Accessibility Tools]Remove or update probes expiring in Firefox 89: devtools.accessibility.tabbing_order_activated
Bug 1701887 R[DevTools:Debugger]Remove ignored tests in devtools/client/debugger/src/client/firefox/tests/
Bug 1687175 R[DevTools:Debugger]It is impossible to remove breakpoints on prettyfied sources
Bug 1696372 R[DevTools:General]Stop using Toolbox.targetList in favor or toolbox.commands.targetCommand or panel's commands.targetCommand
Bug 1701634 R[DevTools:General]Make TargetConfiguration a command
Bug 1701785 R[DevTools:Inspector]Browser Toolbox Inspector shows FX chrome stylesheets as inline
Bug 1699229 R[Firefox:Address Bar]Style the switch-to-tab action text as a chiclet
Bug 1697491 R[Firefox:Bookmarks & History]Update copy for Bookmarks panel
Bug 1697507 R[Firefox:Bookmarks & History]Apply Proton styles to Bookmarks panel when Proton is enabled
Bug 1693139 R[Firefox:Bookmarks & History]Update bookmark dialogs for proton
Bug 1701987 R[Firefox:Bookmarks & History]Add comment and access key to "Location" label
Bug 1700638 R[Firefox:Firefox Accounts]Remove Sync brand from strings
Bug 1701025 R[Firefox:Menus]Missing toolbarseparator between synced tabs lists in FxA panel
Bug 1701000 R[Firefox:Messaging System]Remove the sync logins infobar
Bug 1634564 R[Firefox:Search]Record Search Engine Result Page loads as a result of a reload or a back-button press
Bug 1700873 R[Firefox:Theme][win7] White/Dark line covering the buttons over the tab bar when Dark/Light theme is used an browser is unfocussed
Bug 1699278 R[Firefox:Theme]Add-ons and Preferences sync icons in about:preferences#sync are stretched
Bug 1701903 R[Firefox:about:logins]Replace BrowserTestUtils.waitForCondition with TestUtils.waitForCondition in browser_masterPassword.js
Bug 1701913 R[Firefox Build System:Developer Environment Integration][VSCode] Documentation about Remote Development
Bug 1645425 R[Firefox Build System:Mach Core]Annotate Sentry reports with a "release version"
Bug 1701979 R[Firefox Build System:Mach Core]Adjust Sentry task to be compatible with level 1+3 convention
Bug 1700562 R[Firefox Build System:Toolchains]Update builders to rustc 1.51
Bug 1655896 A[GeckoView:General]Intermittent org.mozilla.geckoview.test.TextInputDelegateTest.inputConnection_deleteSurroundingText[#<test>] | java.lang.AssertionError: Can delete empty text
Bug 1686117 R[Release Engineering:Release Automation: Snap]Switch Snap compression to LZO
Bug 1609162 R[Remote Protocol:Agent]Intermittent remote/cdp/test/browser/<random> | Uncaught exception - [object ProgressEvent] (could not start server on port 9222) [NS_ERROR_SOCKET_ADDRESS_IN_USE]
Bug 1700987 R[Toolkit:Application Update]Ensure that `update.status` error 105 (won't prompt for UAC in background mode) is handled correctly in `--backgroundtask backgroundupdate`
Bug 1701914 R[Toolkit:Notifications and Alerts]Fix margin nit from bug 1699426
Bug 1701165 R[Toolkit:Startup and Profile System]the browser starts with the name of the profile as a domain name.
Bug 1690860 R[Toolkit:Telemetry]FOG Marionette tests should turn off Telemetry log and turn on FOG logs
Bug 1700184 A[WebExtensions:General]Bump builtin addon version to make reflect the small changes applied in Bug 1698158
Bug 1594921 A[WebExtensions:General]Intermittent fission browser/components/extensions/test/browser/browser_ext_webNavigation_urlbar_transitions.js | Got the expected url - Expected: http://mochi.test:8888/, Actual: about:blank -
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Changes to 89 bugs - 78 fixed.
2 bugs are not included due to being restricted