Bug 1688616 R[Core:DOM: Bindings (WebIDL)]Check for large ArrayBuffers or views in WebIDL bindings
Bug 1689623 R[Core:Graphics: WebRender]Crash in [@ nsWindow::IsPopup]
Bug 1586662 R[Core:JavaScript Engine: JIT]MacroAssembler::move64 doesn't use xor instruction for zeroing register
Bug 1689394 N[Core:JavaScript: GC]GC_MINOR_US telemetry changes around 21-01-08
Bug 1683748 R[Core:Layout]Support Grid/Flex/Table/Column layout on the "rendered legend" of a fieldset
Bug 1689799 R[Core:SVG]SVG textPath elements moved on top of each other if they do not have a line break
Bug 1689359 R[Core:Widget: Gtk]Enable non-native theme on Linux Nightly.
Bug 1689727 R[Firefox:General]Stop using XUL <deck> for #updateDeck
Bug 1685779 R[Firefox:Keyboard Navigation]Change Back button tooltip to mention Alt+Left Arrow (Cmd+Left Arrow) keyboard shortcut
Bug 1689405 R[Firefox:Menus]Do initial simplification of the Library menu
Bug 1689742 R[Firefox:Preferences]Stop using XUL <deck> for #setDefaultPane
Bug 1688711 R[Toolkit:OS.File]Crash in [@ mozilla::dom::IOUtils::ReadSync]
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Changes to 12 bugs - 10 fixed.