Bug 1547199 R[Core:Audio/Video: Playback]Intermittent dom/media/test/test_cloneElementVisually_poster.html | Video with a poster should clone properly.
Bug 1698133 R[Core:CSS Parsing and Computation]Enable layout.css.image-set.enabled in all channels.
Bug 1698125 R[Core:CSS Transitions and Animations]CSS transitions and animations should be visible with profiler markers
Bug 1697873 R[Core:DOM: Bindings (WebIDL)]Remove __content special-case from WebIDL parser.
Bug 1678411 R[Core:DOM: Content Processes]Update UX of the slow script warning notification bar for Fission
Bug 1692308 R[Core:DOM: Core & HTML]Merge sGCTimer and sGCInterSliceRunner into a single sGCRunner
Bug 1673931 R[Core:DOM: Core & HTML]Clean up some includes in dom/base, dom/bindings, dom/events and dom/script
Bug 1697525 V[Core:DOM: Core & HTML]Assertion failure: aForWindowDotPrint == IsForWindowDotPrint::No, at /builds/worker/checkouts/gecko/dom/base/nsGlobalWindowOuter.cpp:5244
Bug 1697253 R[Core:DOM: Core & HTML]`typeof VisualViewport` returns "function" regardless of the dom.visualviewport.enabled flag
Bug 1697305 R[Core:DOM: Navigation]Add null check for top embedder element to MaybeTriggerProcessSwitch after running JS
Bug 1672964 R[Core:DOM: Navigation][Fission] Enable tests: test_input_files_not_nsIFile.html, test_inputmode.html, test_nestediframe.html and test_viewport_resize.html
Bug 1697171 R[Core:DOM: Navigation]Clear various states referring to the old BrowserParent when it enters bfcache
Bug 1697886 R[Core:DOM: Navigation]PresShell::GetPrimaryContentDocument shouldn't trigger about:blank creation.
Bug 1665057 R[Core:DOM: Security]HTTPS-Only: Add error page suggestions on how to proceed
Bug 1691888 R[Core:DOM: Security]HTTPS-Only mode gets stuck in a loop if website uses a HTTPS meta refresh to redirect to HTTP
Bug 1696908 A[Core:DOM: UI Events & Focus Handling]Enforce focused BrowsingContext ordering by action id
Bug 1696159 R[Core:DOM: Web Authentication]Web Authn transactions cancelable by other content process
Bug 1640766 R[Core:DOM: Window and Location]Make nsGlobalWindowInner::Suspend/Resume work for nested in-process modal event loops in fission world
Bug 1407167 R[Core:Disability Access APIs]aria ROLE values are case sensitive
Bug 1697963 R[Core:Fuzzing]Images that have not been decoded before in print preview don't reliably show up because of async decode.
Bug 1698175 R[Core:Fuzzing]Print status bar dialog sometimes persists across multiple fuzzing iterations
Bug 1697787 R[Core:GFX: Color Management]startup crash in [@ qcms::transform_util::lut_interp_linear_float]
Bug 1697858 R[Core:GFX: Color Management]Use an additional src profile when fuzzing.
Bug 1614850 R[Core:Graphics: Layers]Enabling layers.progressive-paint causes Firefox to crash
Bug 1697582 R[Core:Graphics: WebRender]Ship Software WebRender to Windows users with small screens / no D3D11 / has GPU process to release
Bug 1697567 R[Core:Graphics: WebRender]Tab thumbnails are upside down with sw-wr on Android
Bug 1695912 R[Core:Graphics: WebRender]"Failed to link shader program: brush_blend" when browsing bbc.com on Adreno 330
Bug 1697981 R[Core:Graphics: WebRender]Do not allocate CompositorWindow for Software WebRender
Bug 1697195 R[Core:Graphics: WebRender]Always allow Software WebRender if Fission is enabled
Bug 1690921 R[Core:IPC]Large IPC messages on Unix are accidentally quadratic and generally inefficient, especially with small OS buffer sizes
Bug 1697904 N[Core:JavaScript Engine]Migrate more JS prefs to StaticPrefs
Bug 1689599 R[Core:JavaScript Engine]Add Fuzzilli support code to the JS engine
Bug 1697984 R[Core:JavaScript Engine]Reserve stack capacity for CompilationGCOutput vectors
Bug 1697298 R[Core:JavaScript Engine]Have some error handling in ReadCompleteFile
Bug 1678374 R[Core:JavaScript Engine]Cleanup includes around JS engine
Bug 1487097 R[Core:JavaScript Engine]Audit uses of MOZ_MAKE_COMPILER_ASSUME_IS_UNREACHABLE in js/src
Bug 1697223 A[Core:JavaScript Engine]Support static binding across strict direct eval scopes
Bug 1650233 R[Core:JavaScript Engine: JIT]Improve Array escape analysis / scalar replacement enough to handle Warp
Bug 1697935 N[Core:JavaScript Engine: JIT]Remove unused javascript.options.spectre.object_mitigations.barriers
Bug 1697451 V[Core:JavaScript Engine: JIT]Assertion failure: !isPhi(), at jit/MIR.h:13761
Bug 1697483 V[Core:JavaScript Engine: JIT]Assertion failure: src != dest, at jit/x64/MacroAssembler-x64.cpp:433
Bug 1697504 R[Core:JavaScript Engine: JIT]Prefer JSObject subclasses in CacheIR code to avoid emitting unreachable code
Bug 1688033 N[Core:JavaScript Engine: JIT]Use scalar replacement to optimize the arguments object in Warp
Bug 1697816 V[Core:JavaScript Engine: JIT]Assertion failure: (asBits_ & js::gc::CellAlignMask) == 0 (GC pointer is not aligned. Is this memory corruption?), at js/Value.h:587
Bug 1692069 N[Core:Javascript: WebAssembly]Update existing GC instructions/types to match V8's milestone 3
Bug 1697779 R[Core:Javascript: WebAssembly]Perma js/src/jit-test/tests/wasm/gc/disabled.js | /builds/worker/checkouts/gecko/js/src/jit-test/lib/wasm.js:55:21 Error: Assertion failed: got false, expected true (code 3, args "") [0.1 s] when Gecko 88 merges to Beta on 2021-03-22
Bug 1693912 R[Core:Javascript: WebAssembly]Renumber SIMD instructions based on final spec
Bug 1697842 R[Core:Layout]Don't specify a rayon minor version in Cargo.toml
Bug 1662838 R[Core:Layout]Remove nsDocumentViewer::CallChildren usage in PausePainting/ResumePainting
Bug 1694671 R[Core:Layout]Crash in [@ rayon_core::job::{{impl}}::execute<T>]
Bug 1696176 R[Core:Layout]Broken behavior in nsIFrame::SelectByTypeAtPoint
Bug 1697529 R[Core:Layout: Ruby][css-ruby] visibility:collapse on ruby annotations
Bug 1342741 R[Core:Layout: Text and Fonts]Use Menlo as the default monospace font on macOS
Bug 1696846 R[Core:Panning and Zooming]Intermittent gfx/layers/apz/test/mochitest/test_group_zoom-2.html | helper_zoom_with_touchpad.html | The final resolution (1.6385762691497803) is equal after prevent default
Bug 1696802 R[Core:Panning and Zooming]add code for preffed off double tap to zoom on mac
Bug 1697756 R[Core:Panning and Zooming]Assertion failure: updateLastScale, at widget/windows/DirectManipulationOwner.cpp:354
Bug 1687283 R[Core:Privacy: Anti-Tracking]Storage access permission is shown for first party
Bug 1697736 R[Core:SVG]Intermittent [Tier2] svg/filters/feGaussianBlur-5.svg == svg/filters/feGaussianBlur-5-ref.svg | image comparison, max difference: 4, number of differing pixels: 199
Bug 1543154 R[Core:Storage: IndexedDB]Assertion failure: mGlobal, at /builds/worker/workspace/build/src/dom/indexedDB/IDBFactory.cpp:571
Bug 1687001 R[Core:Storage: IndexedDB]ThreadSanitizer: data race [@ TransactionBase::CommitOp::CommitOrRollbackAutoIncrementCounts ] vs. [@ FullDatabaseMetadata::Duplicate]
Bug 1641178 R[Core:Storage: IndexedDB]Use a sufficiently secure encryption scheme
Bug 1686191 A[Core:Storage: Quota Manager]Have a way to specifically report warnings around QM_TRY
Bug 1685888 N[Core:Web Painting]Firefox screenshot looks different than what is displayed
Bug 1691329 R[Core:WebRTC]Cursor missing on Windows WebRTC calls when sharing screen (dual-monitor setup)
Bug 1698106 R[Core:WebRTC: Audio/Video]bugzilla product assigned to dom/media/webrtc/moz.build should follow uppercase like in Bugzilla ('Core' instead of 'CORE')
Bug 1696593 R[Core:WebRTC: Networking]ICE gathering fails silently
Bug 1697467 R[Core:Widget]Non-native theme button/dropdown menu are not visible with high contrast
Bug 1697607 R[Core:Widget]Consider enabling widget.remote-look-and-feel everywhere.
Bug 1697969 R[Core:Widget: Cocoa]Use nsCocoaUtils::GetEventTimeStamp for wheel event timestamps
Bug 1644261 R[Core:Widget: Cocoa]Make macOS system CSS colors work for dark mode, if "force aqua" is off
Bug 1077365 R[Core:Widget: Cocoa]Use NSTextFieldCell for text field drawing
Bug 1689682 R[Core:Widget: Cocoa]Long tooltips open on wrong screen
Bug 1697331 R[Core:Widget: Cocoa]Implement "force aqua appearance" with a pref instead of via Info.plist
Bug 1697350 R[Core:Widget: Cocoa]Simplify NSCell focus ring drawing situation
Bug 1697964 R[Core:Widget: Cocoa]More macOS code cleanup after dropping compatibility for old versions of macOS
Bug 1697210 R[Core:Widget: Win32]radio buttons can have uneven eye and border with non-native theme
Bug 1689884 R[Core:Widget: Win32]Scrolling on Amazon Prime Music playlist is very slow
Bug 1694530 R[Core:XPCOM]Allow to prepend a distinct header by using MOZ_LOG=prependheader
Bug 1693462 R[Core:XPCOM]Avoid quarantine attribute being set when using nsILocalFile.copyTo* on macOS
Bug 1212958 R[DevTools:CSS and Themes]Change and unify the splitter colors
Bug 1697354 R[DevTools:General]Intermittent devtools-fission devtools/shared/resources/tests/browser_target_list_frames.js | The new target should be the newly loaded document - Got "about:blank", expected "https://example.org/document-builder.sjs?html=org"
Bug 1608571 R[DevTools:Shared Components]Expanding objects makes them jump around
Bug 1694489 R[External Software Affecting Firefox:Other]Crash in [@ k7pswsen.dll | BaseThreadInitThunk] (K7 Total Security)
Bug 1697191 R[Firefox:Address Bar]Remove remaining built-in page action widgets
Bug 1692046 R[Firefox:Address Bar]Add Proton address bar dark mode colours
Bug 1697517 R[Firefox:Address Bar]Tab to search - Search with google shows up in the wrong position
Bug 1697566 R[Firefox:Enterprise Policies]UserMessaging->SkipOnboarding doesn't work
Bug 1693052 R[Firefox:Firefox Accounts][Proton] Update sync/fxa data warning
Bug 1697282 R[Firefox:Launcher Process]Build fails when launcher process is disabled via build config
Bug 1694678 R[Firefox:Menus]The "Last synced ..." time from the FxA menu is not updated accordingly
Bug 1697682 A[Firefox:Menus]Update container-related content and tab context menu labels, take 2
Bug 1695694 R[Firefox:Menus][Proton] Windows 10 Context menu separator colours need updating
Bug 1692673 R[Firefox:Menus]"Cut" and "Copy" shouldn't be enabled when opening the page context menu on an input/textarea without a selection
Bug 1692666 R[Firefox:Menus]Move "Search [Engine] for '...'" to its own dedicated section (ie separator before + after) in the content context menu
Bug 1690030 R[Firefox:Menus]Move 'View Image' on content context menu to become 'Open Image in New Tab'
Bug 1696554 R[Firefox:Messaging System]Add support to run onboarding experiments using new multistage proton template
Bug 1692381 R[Firefox:Messaging System]update npm dev-dependencies for Fx 88 nightly and refile this bug for Fx 89
Bug 1693381 R[Firefox:Normandy Client]Treat an empty recipe collection as an error
Bug 1689264 R[Firefox:PDF Viewer]Remove or update probes expiring in Firefox 88: PDF_VIEWER_*
Bug 1698076 R[Firefox:Protections UI]Replace BrowserTestUtils.waitForCondition with TestUtils.waitForCondition in browser_protectionsUI_report_breakage.js
Bug 1697685 R[Firefox:Search]Intermittent browser/components/search/test/browser/browser_searchbar_context.js | application terminated with exit code 1
Bug 1691135 R[Firefox:Session Restore][Fission] Reload button not working
Bug 1693677 A[Firefox:Site Permissions]Grant a temporary grace period for re-requesting microphone or camera devices after the track stops
Bug 1693621 R[Firefox:Site Permissions]Allow SitePermissions to store "temporary allow" state
Bug 1695615 R[Firefox:Site Permissions]Update permission panel for double-keyed WebRTC permissions
Bug 1697295 R[Firefox:Site Permissions]When Proton is enabled, hide the "Choose Camera", "Choose Microphone" labels, and replace with icons
Bug 1694659 R[Firefox:Tabbed Browser]Update permit unload / beforeunload / unload warning prompt wording
Bug 1697783 R[Firefox:Tabbed Browser]"Share" option from tab context menu does nothing in Windows 7
Bug 1697623 R[Firefox:Theme]Improve proton compact density - round 2
Bug 1688301 R[Firefox:Theme]Separator space between last pinned tab and first non-pinned tab may not be shown with hidden tabs
Bug 1698161 R[Firefox:Theme]Rename check-animation.svg to success-animation.svg
Bug 1696524 R[Firefox:Theme][Proton] Tab shadow doesn't match the spec
Bug 1696546 R[Firefox:Theme][Proton] A dark line is shown at the top of the selected tab when the menubar is visible
Bug 1697315 R[Firefox:Theme]Add preliminary Proton styles for browser UI checkboxes
Bug 1698048 R[Firefox:Theme]Move browser/themes/shared/reader/readerMode.svg to the browser/themes/shared/icons directory
Bug 1698041 R[Firefox:Theme]Use a different naming scheme for category icons in preferences
Bug 1695172 R[Firefox:Toolbars and Customization]Items from toolbar are moving when clicking Restore defaults/ Undo buttons
Bug 1698100 R[Firefox:Toolbars and Customization]Record usage of compact mode in telemetry
Bug 1691436 R[Firefox:Toolbars and Customization]Always include pageAction buttons in the address bar
Bug 1694817 R[Firefox:Toolbars and Customization]Investigate and fix tests that fail when the Proton Toolbar is enabled by default
Bug 1688803 R[Firefox Build System:Bootstrap Configuration]./mach bootstrap installed old version of cargo
Bug 1697960 R[Firefox Build System:Bootstrap Configuration]Don't prompt for telemetry when glean couldn't be installed
Bug 1507272 R[Firefox Build System:General]Enable build telemetry by default for Mozilla employees
Bug 1697847 R[Firefox Build System:General]Update crossbeam-utils in the tree.
Bug 1695366 R[Firefox Build System:Mach Core]Only send exceptions to Sentry if Python files have not been changed
Bug 1697042 R[Firefox Build System:Mach Core]Remove "DeprecatedCommands" logic
Bug 1695272 R[Firefox Build System:Mach Core]Move --no-interactive to global mach args
Bug 1694981 R[Firefox Build System:Mach Core]distro and distro_version aren't in mach telemetry docs
Bug 1694839 R[Firefox Build System:Mach Core]|mach doc mach-telemetry| assumes "glean_parser" is on the $PATH
Bug 1694838 R[Firefox Build System:Mach Core]|mach doc mach-telemetry| doesn't show failure reasons
Bug 1695973 R[Firefox Build System:Mach Core]Remove retry limit from bootstrap prompt
Bug 1696251 A[Firefox Build System:Mach Core]Allow Mach commands as standalone functions
Bug 1662652 R[Firefox Build System:Source Code Analysis]Add static analysis for non-standard quasi-move operations
Bug 1696041 A[Firefox Build System:Task Configuration]Investigate removing `fission-run-on-projects` and `webrender-run-on-projects`
Bug 1696944 A[Firefox Build System:Task Configuration]Update Python used in decision task to at least 3.6
Bug 1696460 R[GeckoView:General]Aggressively terminate content processes when IChildProcess.start fails
Bug 1572739 R[Infrastructure & Operations:RelOps: Posix OS]Move linux hardware testers to ubuntu1804
Bug 1639024 R[Release Engineering:Applications: MozharnessCore]Convert 'mach mozharness' to run with Python 3
Bug 1694515 R[Toolkit:Application Update]Add background task utilities for locking and reading prefs and other data from particular profiles
Bug 1697924 R[Toolkit:Application Update]Migration of app.update.auto incorrectly migrates `false` when there is no un-migrated pref
Bug 1697482 R[Toolkit:Password Manager]Update copy and put labels above username and password fields in the Save / Update password panel
Bug 1695622 R[Toolkit:Printing]Firefox 86 print preview does not work
Bug 1682162 R[Toolkit:Printing]Print margin unit should be localized
Bug 1697823 R[Toolkit:Telemetry]Intermittent random test failure because of Toolkit.Telemetry ERROR ClientID::updateClientID - invalid client ID: null" {file: "resource://gre/modules/Log.jsm" line: 723}]
Bug 1697665 R[Toolkit:Themes]Update checkbox checkmark for in-content pages
Bug 1698058 R[Toolkit:Themes]Cleanup download manager action icons
Bug 1698137 R[Toolkit:Themes]De-duplicate identity-icon.svg and info.svg
Bug 1692082 R[Toolkit:Themes]Fix checkbox and radio menuitem styling
Bug 1698035 R[Toolkit:Themes]De-duplicate 16x16 icons re-packaged in browser/themes/shared/preferences directory
Bug 1697806 R[Toolkit:Themes]De-duplicate colored extension SVG icons
Bug 1669205 R[Toolkit:Video/Audio Controls]PIP icon will disappear when dragging the tab to create a new window
Bug 1695020 R[Toolkit:Video/Audio Controls]Fix PiP error: `InvalidStateError: JSWindowActorChild.document getter: Cannot access property 'document' after actor 'PictureInPictureToggle' has been destroyed`
Bug 1693050 R[WebExtensions:Frontend]Update extension removal warning content/text
Bug 1646817 R[WebExtensions:General]Non-tab extension loads do not support DocumentChannel process switches
###########
Changes to 161 bugs - 138 fixed.
2 bugs are not included due to being restricted