Bug 1701742 R[Core:Audio/Video: Playback]Make Chromium (Widevine) manifest codec parse failure non fatal
Bug 1699249 R[Core:Audio/Video: Playback]To know the usage of different source buffer types
Bug 1694645 A[Core:Audio/Video: Playback]Intermittent dom/media/test/test_mediarecorder_principals.html | mediaRecorder.onerror must fire SecurityError - got "UnknownError", expected "SecurityError"
Bug 1697344 R[Core:Canvas: 2D]GPU acceleration of canvas creates a memory leak that can rapidly crash Firefox
Bug 1701173 R[Core:DOM: Content Processes]Perma Fission dom/ipc/tests/browser_crash_oopiframe.js | Subframe crashed ui count at end of test - 4 == 3 - JS frame :: resource://testing-common/TelemetryTestUtils.jsm :: assertScalar :: line 25
Bug 1700363 R[Core:DOM: Core & HTML]High frequency TEST-UNEXPECTED-TIMEOUT | /html/syntax/xmldecl/xmldecl.html | expected OK
Bug 1689685 R[Core:DOM: Navigation]Ensure docshell/test/navigation/test_scrollRestoration.html works with SHIP-BFCache
Bug 1689683 R[Core:DOM: Navigation]Ensure docshell/test/mochitest/test_bug590573.html works with SHIP-BFCache
Bug 1694932 R[Core:DOM: Security]Https-only mode reloads the page in certain cases when there should be just a fragment navigation
Bug 1701621 R[Core:DOM: Security]Use of unknown property Ci.nsIAboutModule.URI_CONTENT_LINKABLE in browser_resource_uri.js
Bug 1670244 A[Core:DOM: Security]Perform IPC based Principal vetting in ContentParent to ensure we never load a document with a codebase principal in the wrong type of webIsolated process
Bug 1701726 R[Core:DOM: Workers]Doc improvements for Remote and Shared workers
Bug 1701457 R[Core:GFX: Color Management]Rewrite compute_curve_gamma_table_type_parametric.
Bug 1701455 R[Core:GFX: Color Management]Turn on ICCv4 in Nightly on macOS.
Bug 1700520 R[Core:Graphics]GCC takes a long time to compile gl.cc
Bug 1462231 R[Core:Graphics: Text]font-size-adjust doesn't seem to work on Android
Bug 1700232 V[Core:Graphics: WebRender]Hit MOZ_CRASH(assertion failed: !params.descriptor.size.is_empty()) at gfx/wr/webrender/src/texture_cache.rs:1624
Bug 1700717 R[Core:Graphics: WebRender]Build SWGL with -ffast-math
Bug 1701361 R[Core:Graphics: WebRender]Reproducible crash on arstechnica [@ core::option::expect_failed | webrender::spatial_tree::SpatialTree::get_relative_transform_with_face ]
Bug 1701563 R[Core:Graphics: WebRender]Recreate RenderThread::mSingletonGL during fallback to RenderCompositorOGLSWGL
Bug 1699224 R[Core:Graphics: WebRender]Support remapping shared surfaces when there is virtual memory pressure
Bug 1700539 N[Core:Graphics: WebRender]Allow negative scale in ScaleOffset type
Bug 1676137 R[Core:Internationalization]Remove intl.uidirection pref
Bug 1700447 R[Core:Internationalization]Define a default value for "intl.l10n.pseudo" pref
Bug 1426385 R[Core:JavaScript Engine]Crash [@ js::CompartmentChecker::fail] with evaluate
Bug 1701159 R[Core:JavaScript Engine: JIT][MIPS64] Fix mips64 emulator bugs
Bug 1638295 R[Core:JavaScript Engine: JIT]Support inlining Atomics functions for BigInt64/BigUint64
Bug 1701771 R[Core:Layout]Remove unused PropagateToPresContextsHelper function
Bug 1701292 R[Core:Layout]layout/reftests/backgrounds/reftest.list includes non-existent directory
Bug 1701434 R[Core:Layout: Images, Video, and HTML Frames]Intermittent TEST-UNEXPECTED-TIMEOUT | /css/css-backgrounds/animations/background-color-transparent-animation-in-body.html | expected PASS
Bug 1698495 R[Core:Layout: Text and Fonts]Implement the `size-adjust` descriptor for @font-face rules
Bug 1700702 R[Core:Panning and Zooming]Unexpected overscroll in single-line text fields
Bug 1701029 R[Core:Performance]Enable PerformanceEventTiming in all channels
Bug 1701019 R[Core:Printing: Setup]Firefox 87.0 on Linux (CentOS 7.9) print modal not showing any print destinations other than PDF
Bug 1695050 R[Core:Privacy: Anti-Tracking]Make the CookieBehavior to be able to set for Private Browsing Mode
Bug 1700051 N[Core:Spelling checker]Reduce accessbility of `mozInlineSpellStatus`'s members
Bug 1701792 N[Core:Widget]Poor contrast with dark theme on extension disabled buttons with a GTK dark theme.
Bug 738335 R[Core:Widget: Cocoa][10.7] Showing menubar covers firefox window in fullscreen mode (chrome should slide with the menu bar)
Bug 1700211 R[Core:Widget: Cocoa]1px flickering white line in fullscreen when full-screen-api.macos.shiftToolbar is true
Bug 1682136 R[Core:Window Management]Window position not restored correctly on start (moved by 8px)
Bug 1572659 R[DevTools:Inspector]Add a test for PausedDebuggerOverlay when we pause in a remote frame
Bug 1699040 V[DevTools:Inspector: Animations]Animation inspector's global play / pause buttons don't work until the rule panel has been finished loading
Bug 1700548 R[DevTools:Responsive Design Mode]Media color scheme simulation is turned off when closing RDM
Bug 1700281 R[External Software Affecting Firefox:Other]Crash in [@ LdrpMapAndSnapDependency] | WebRoot AV
Bug 1700792 R[Firefox:Enterprise Policies]Intermittent TV browser/components/enterprisepolicies/tests/browser/browser_policy_support_menu.js | Test timed out -
Bug 1701360 R[Firefox:General]Some errors occur when opening some extensions in a sidebar
Bug 1701645 R[Firefox:General]Fix more tests that fail with proton enabled
Bug 1700993 R[Firefox:Menus]Ensure fxa button in app menu has correct labels when disconnected or finishing account setup
Bug 1698678 R[Firefox:Menus]Remove nightly-specific ifdefs in browser-menubar for preferences entrypoints on Windows and Linux
Bug 1701287 R[Firefox:Menus]Label for #PanelUI-menu-button is misnamed in Firefox Developer Edition
Bug 1684151 R[Firefox:Messaging System]NewTab page - center the action with the close button inside the onboarding message
Bug 1700105 R[Firefox:Messaging System]Identify and fix and tests that fail when browser.proton.doorhangers.enabled is true
Bug 1701577 R[Firefox:Preferences]Preferences - Applications focus ring truncated but top-header section in table
Bug 1646338 R[Firefox:Search]When re-enabling a WebExtension that normally prompts to set as default, we should re-prompt the user.
Bug 1697477 R[Firefox:Search]Expose a property on nsISearchEngine to indicate general web search engines
Bug 1573399 R[Firefox:Security]Add missing test cases to browser_aboutNetError.js
Bug 1700519 R[Firefox:Theme]Remove unused SVGs from browser/themes/shared/fullscreen
Bug 1700194 R[Firefox:Toolbars and Customization]Bookmark Button on Toolbar - Proton Bookmark popup double Borders
Bug 1700748 R[Firefox:Top Sites]Show Yandex sponsored tile only if Yandex is set as default search engine
Bug 1700744 R[Firefox:Top Sites]Suppress Sponsored label for Yandex
Bug 1701734 R[Firefox Build System:Lint and Formatting]Top-level dot files are not run through ESLint on continuous integration runs
Bug 1700632 R[Firefox Build System:Mach Core]Generating mach completion had a quote error
Bug 1700432 A[Firefox Build System:Task Configuration]Stop running python-test unittests against Python 2
Bug 1701608 R[Release Engineering:Release Automation: Updates]Permafailing ERROR: Could not find a version that satisfies the requirement aiohttp==3.7.4.post0 (from -r requirements.in (line 1))
Bug 1693763 R[Remote Protocol:CDP]Re-enable CI runs for Windows on Puppeteer repository
Bug 1688424 R[Thunderbird:Folder and Message Lists]No tooltips in Thread pane when hovering over long subjects
Bug 1699426 R[Toolkit:Notifications and Alerts]Polish modal design for MR1
Bug 1701704 R[Toolkit:Password Manager]Manage logins… shouldn't use ellipsis
Bug 1700835 R[Toolkit:Telemetry]Remove or update probes expiring in Firefox 90: telemetry.*
Bug 1457984 N[Toolkit:Telemetry]Intermittent toolkit/components/telemetry/tests/unit/test_TelemetrySend.js | test_sendCheckOverride - [test_sendCheckOverride : 528] Must receive a ping of the expected type - "health" == "test-sendCheckOverride"
Bug 1697555 R[Toolkit:Telemetry]Remove Accounts Ecosystem Telemetry supporting code from tree
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Changes to 74 bugs - 64 fixed.