Bug 1712368 R[Core:Audio/Video: Playback]Update mp4parse-rust to dd96773
Bug 1579623 N[Core:DOM: Core & HTML]Intermittent dom/html/test/test_fullscreen-api.html | [scrollbar] Should have vertical scrollbar when [object HTMLHtmlElement] is in fullscreen - got 485, expected 1585
Bug 1669840 R[Core:Graphics: WebRender]Improve opacity flattening
Bug 1712147 R[Core:ImageLib]Permanent gecko/image/build/nsImageModule.cpp:62:29: error: no member named 'image_jxl_enabled' in namespace 'mozilla::StaticPrefs' when Gecko 90 merges to Beta on 2021-05-31
Bug 1712411 R[Core:ImageLib]Update jpeg-xl to new version 44778c6902084bd239c5fb8eaa53bfd90dd9face from 2021-05-21 20:39:54
Bug 1711630 R[Core:Layout]multicolumn rendering: elements with `min-height` break inside despite `break-insise: avoid`
Bug 1711180 R[Core:Storage: Cache API]CACHE: Replace remaining ordinary orElse uses with one of QM_OR_ELSE macros or by refactoring the code
Bug 1709598 R[Toolkit:General]Implement API to pin the app to the macOS Dock
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Changes to 8 bugs - 7 fixed.