Bug 1695797 R[Toolkit:Application Update]In background task mode, only process updates if we're the only instance running
Bug 1696408 R[Toolkit:Async Tooling]Shutdown ticks description is wrong
Bug 1696675 R[Toolkit:Themes]Remove obsolete .help-button styling from common.css
Bug 1696676 R[Toolkit:Themes]Clean up platform-specific styling in common.css
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Changes to 6 bugs - 6 fixed.