Changes in 20210725094703

Built from ab524816237c246a054ef8cfb65937fe3315efa5

..index..
Bug 1722031 R[Core:CSS Parsing and Computation]Ship accent-color
Bug 1722010 R[Core:JavaScript: GC]Improve reporting of pretenuring information
Bug 1717873 R[Core:Layout]Thread indentation lines sometimes invisible when printing if using "High Contrast Black" color scheme in Windows 10
Bug 1720464 A[Core:Security: PSM]Upgrade Firefox 92 to use NSS 3.69
Bug 776669 R[Firefox:Tabbed Browser]Add pinned tabs to All Tabs drop-down menu
Bug 1693385 N[WebExtensions:General]support manifest.host_permissions
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Changes to 6 bugs - 4 fixed.
1 bugs are not included due to being restricted