Bug 1661187 R[Core:Audio/Video]Intermittent dom/media/mediacontrol/tests/browser_resume_latest_paused_media.js | Test timed out -
Bug 1690416 R[Core:Audio/Video: Playback]Remove `HTMLMediaElement::ReportCanPlayTelemetry()`
Bug 1564882 N[Core:CSS Parsing and Computation]Intermittent css-valuesandunits/unit-vh-vw-overflow-auto.html == css-valuesandunits/unit-vh-vw-overflow-scroll.html | image comparison, max difference: 1, number of differing pixels: 4
Bug 1691652 A[Core:CSS Parsing and Computation]Consistent crash from CSS with percentages in linear-gradient
Bug 1691606 R[Core:Canvas: WebGL]Clean up dead code following WebGL out-of-process stabilization
Bug 1690329 R[Core:DOM: Content Processes]Extend probe expiring in Firefox 89: WINDOW_REMOTE_SUBFRAMES_ENABLED_STATUS
Bug 1677899 R[Core:DOM: Core & HTML]Permafail browser/base/content/test/fullscreen/browser_fullscreen_window_focus.js | Test timed out - | Found a tab after previous test timed out: http://example.com/browser/browser/base/content/test/fullscreen/open_and_focus_helper.html
Bug 1662840 R[Core:DOM: Navigation]Move SetOverrideDPPX to WindowContext or BrowsingContext
Bug 1688815 A[Core:DOM: Security]Update siteOrigin handling of nsIPrincipal for view-source URIs
Bug 1691214 R[Core:DOM: UI Events & Focus Handling]window.focus() does not work after window.open(url, windowName, feature) if the same windowName exists,
Bug 1690747 R[Core:DOM: UI Events & Focus Handling]Should also check if blur is allowed in BrowsingContext::Focus()
Bug 1690924 R[Core:Disability Access APIs]Intermittent accessible/tests/browser/mac/browser_menulist.js | Second menu item is selected - Got +0, expected 1
Bug 1691128 R[Core:Gecko Profiler]Early content process startup missing in profiles
Bug 1691504 R[Core:Gecko Profiler]Inconsistent values for BufferRangeStart and SamplePositionInBuffer in MergeStacks
Bug 1691121 R[Core:Gecko Profiler]"warning: 'syscall' is deprecated" in profiler_current_thread_id()
Bug 1691353 R[Core:Gecko Profiler]TestDictionaryBinding.cpp - GeckoProfiler.h:83:5: error: ?StackCaptureOptions? has not been declared
Bug 1691170 R[Core:Graphics]"warning: 'kCTFontDefaultOrientation' is deprecated"
Bug 1682180 R[Core:Graphics: WebRender]Allow Software WebRender on Linux nightly/early beta with software mesa
Bug 1691640 R[Core:Graphics: WebRender]Add nullptr check to MapTexture()
Bug 1691120 R[Core:Graphics: WebRender]webrender::render_api::ApiMsg::WakeUp is unneeded
Bug 1662281 R[Core:Graphics: WebRender]Silence `[... WARN webrender_bindings::bindings] Could not find symbol "gl..." by glcontext` log spam
Bug 1691421 R[Core:Graphics: WebRender]4.08 - 22.74% Explicit Memory / Heap Unclassified (windows10-64-shippable-qr) regression on push 2f575c3c4353b2c5adc27519e55ca4f3c125a1d2 (Fri February 5 2021)
Bug 1689147 R[Core:IPC]basic support for extended attributes in IPDL
Bug 1691695 R[Core:Internationalization: Localization]Add Silesian (szl) to available language names
Bug 1691134 R[Core:JavaScript Engine]Add more mode to parsemark.py
Bug 1690618 R[Core:JavaScript Engine]Update ReservedWords.h comment
Bug 1691107 R[Core:JavaScript Engine]Refactor FOR_EACH_COMMON_PROPERTYNAME as a preparation to add more case
Bug 1691029 R[Core:JavaScript Engine]Rename length-1/length-2 types/functions
Bug 1681567 R[Core:JavaScript Engine]Default constructors and spread operations
Bug 1691570 R[Core:JavaScript Engine]Replace ScriptSourceHolder with RefPtr<ScriptSource>
Bug 1691505 R[Core:JavaScript Engine]Remove js::frontend::CompilationStencilSet
Bug 1691014 R[Core:JavaScript Engine]Remove WellKnownParserAtoms::lookupTiny
Bug 1689503 R[Core:JavaScript Engine]Crash in [@ js::ArrayBufferObject::addSizeOfExcludingThis]
Bug 1670044 R[Core:JavaScript Engine]Allow Arbitrary module namespace identifier names
Bug 1691503 R[Core:JavaScript Engine]Rename CompilationInfo.h to CompilationStencil.h
Bug 1690277 R[Core:JavaScript Engine]Snapshot delazification enclosing scope
Bug 1691194 N[Core:JavaScript Engine: JIT]Inline more large self-hosted functions
Bug 1638295 R[Core:JavaScript Engine: JIT]Support inlining Atomics functions for BigInt64/BigUint64
Bug 1688913 A[Core:JavaScript Engine: JIT]Follow-up changes for bug 1687441
Bug 1691373 R[Core:JavaScript: GC]MARK_DELAYED phase can occur under SWEEP_MARK on the main thread
Bug 1680688 R[Core:Networking]Firefox 83 loses connection when network is changed between 1 requiring proxy (VPN) and 1 without proxy
Bug 1686421 R[Core:Networking]Only enable network.dns.upgrade_with_https_rr on nightly and collect more probes
Bug 1666725 U[Core:Networking]gvfs-integration for browsing broken
Bug 1691484 R[Core:Networking]Crash in [@ mozilla::net::nsHttpConnectionInfo::CloneAndAdoptHTTPSSVCRecord]
Bug 1688091 R[Core:Networking: HTTP]Improve the telemetry for the HTTP3 connection closing reasons
Bug 1690235 R[Core:Printing: Output]Wrong Unicode characters on Greek letters on print to pdf , after 84.00 update
Bug 1682536 R[Core:Storage: Quota Manager]Use NotNull more in quota manager and quota clients
Bug 1690025 R[Core:Storage: Quota Manager]Modernize and clean up DirectoryLock
Bug 1683973 R[Core:WebVR]ThreadSanitizer: data race [@ VRService::StopInternal] vs. [@ VRService::ServiceInitialize]
Bug 1691167 R[Core:Widget: Cocoa]"warning: 'context' is deprecated" in various places
Bug 1691829 R[Core:Widget: Cocoa]Cocoa file picker does not specify interfaces for its file enumerators
Bug 1691169 R[Core:Widget: Cocoa]Remove unused "bright titlebar foreground" code
Bug 1690653 R[Core:Widget: Cocoa]No-op composites spend too much time in CoreAnimation
Bug 1691166 R[Core:Widget: Cocoa]deprecated NSSystemDefined enum constant in TestMediaKeysEventMac.mm
Bug 1667851 U[Core:Widget: Gtk][wayland] firefox flickers when opened
Bug 1690778 R[Core:Widget: Gtk]Select list items are using Ubuntu theme colors
Bug 1683578 A[Core:Widget: Gtk][wayland] Tooltips occasionally stop showing
Bug 1688833 R[Core:XPCOM]Migrate nsBaseHashtable::LookupForAdd to nsBaseHashtable::WithEntryHandle
Bug 1624705 R[Core:XPConnect]Let Xray waiver nuking for local window proxies ride the trains
Bug 1689000 N[DevTools:Console]Intermittent leakcheck | default 5943577 bytes leaked (AbstractThread, AbstractWatcher, AnimationTimeline, AsyncCompileShutdownObserver, AsyncFreeSnowWhite, ...)
Bug 1691315 R[DevTools:General]Rewrite `X.setAttribute("hidden", Y)` to `X.hidden = Y` in devtools/startup
Bug 1691314 R[DevTools:General]Rewrite `X.setAttribute("hidden", Y)` to `X.hidden = Y` in devtools/client
Bug 1691349 R[DevTools:Inspector]Screenshot node from the inspector on about:preferences makes the browser hang
Bug 1676469 R[Firefox:Address Bar]Convert matchBuckets to a granular list of result groups and rewrite the muxer to use it
Bug 1678323 R[Firefox:Address Bar]Ctrl+L, Tab stopped working with browser.toolbars.keyboard_navigation=false
Bug 1690557 V[Firefox:New Tab Page]The HIDE_PERSONALIZE telemetry event is sent at every click on the New Tab page
Bug 1670293 R[Firefox:Nimbus Desktop Client]RSExperimentLoader should expose evaluateJexl for testing
Bug 1691526 R[Firefox:Nimbus Desktop Client]Enable 'os' level targeting for Nimbus Experiment
Bug 1690312 R[Firefox:Nimbus Desktop Client]Remove checks for exposure ping and allow it to be sent multiple times
Bug 1677540 R[Firefox:Session Restore]Intermittent browser/components/sessionstore/test/browser_async_remove_tab.js | Uncaught exception - AbortError: Actor 'SpecialPowers' destroyed before query 'Spawn' was resolved | Found an unexpected tab at the end of test run: https://example.com
Bug 1691480 R[Firefox:Tabbed Browser]Remove remnants of isLastMultiSelectChange
Bug 1690712 R[Firefox Build System:General]Allow --enable-bootstrap in all configurations
Bug 1691692 R[Firefox Build System:General]Add Silesian (szl) to Beta builds
Bug 1691461 R[Firefox Build System:Lint and Formatting]Perma Bugzilla bustage FileToBugzillaMappingError: Missing Bugzilla component: services/docs/index.rst - Set the BUG_COMPONENT in the moz.build file to fix the issue.
Bug 1691352 R[Firefox Build System:Lint and Formatting]mozlint/codespell: Fix --fix
Bug 1691685 R[Firefox Build System:Toolchains]Perma Linux 32-bit Bpgo(instr) make[4]: *** [libnspr4.so] Error 1
Bug 1639164 A[Firefox Build System:Try]"mach try auto" should select the best platforms to run manifests on
Bug 1674528 R[GeckoView:General]Intermittent org.mozilla.geckoview.test.MediaSessionTest.domMultiSessions | java.lang.AssertionError: onMetadata should be called specified number of times
Bug 1672478 R[GeckoView:Tracking Protection]Support HTTPS-only mode in GV
Bug 1691850 R[Toolkit:General]Add layout.frame_rate to the list of important modified preferences that are shown on about:support
Bug 1649590 R[Toolkit:OS.File]XPIProvider.jsm imports OS.File during startup
Bug 1681941 A[Toolkit:Printing]Tooltips on sheet indicator buttons are not shown for the second hover action if the sheet indicator focus is not removed
Bug 1690877 R[Toolkit:Startup and Profile System]New long-ish delay between first paint and presenting initial about:home
Bug 1588616 A[WebExtensions:General]ext-menus.js doesn't properly call withLastError (null instead of caller)
###########
Changes to 90 bugs - 74 fixed.
3 bugs are not included due to being restricted