The visual refresh work for Loop started in 42 and has almost finished in 43. However it isn't suitable for uplift, so we need to backout the few bugs that did land in 42.

Approval Request Comment [Feature/regressing bug #]: FF Hello Visual Refresh, backout patch 1 of 5 [User impact if declined]: Partial refresh implementation landed for 42, but is now being completed for 43 and isn't suitable for uplift. Hence, the current partially done 42 has bad layouts and an incomplete design change. [Describe test coverage new/current, TreeHerder]: Code has unit tests [Risks and why]: Low - reverting to the previous version. [String/UUID change made/needed]: None. Any string changes are not being backed out.

Approval Request Comment [Feature/regressing bug #]: FF Hello Visual Refresh, backout patch 2 of 5 [User impact if declined]: Partial refresh implementation landed for 42, but is now being completed for 43 and isn't suitable for uplift. Hence, the current partially done 42 has bad layouts and an incomplete design change. [Describe test coverage new/current, TreeHerder]: Code has unit tests [Risks and why]: Low - reverting to the previous version. [String/UUID change made/needed]: None. Any string changes are not being backed out.

Approval Request Comment [Feature/regressing bug #]: FF Hello Visual Refresh, backout patch 3 of 5 [User impact if declined]: Partial refresh implementation landed for 42, but is now being completed for 43 and isn't suitable for uplift. Hence, the current partially done 42 has bad layouts and an incomplete design change. [Describe test coverage new/current, TreeHerder]: Code has unit tests [Risks and why]: Low - reverting to the previous version. [String/UUID change made/needed]: None. Any string changes are not being backed out.

Approval Request Comment [Feature/regressing bug #]: FF Hello Visual Refresh, backout patch 4 of 5 [User impact if declined]: Partial refresh implementation landed for 42, but is now being completed for 43 and isn't suitable for uplift. Hence, the current partially done 42 has bad layouts and an incomplete design change. [Describe test coverage new/current, TreeHerder]: Code has unit tests [Risks and why]: Low - reverting to the previous version. [String/UUID change made/needed]: None. Any string changes are not being backed out.

Approval Request Comment [Feature/regressing bug #]: FF Hello Visual Refresh, backout patch 5 of 5 [User impact if declined]: Partial refresh implementation landed for 42, but is now being completed for 43 and isn't suitable for uplift. Hence, the current partially done 42 has bad layouts and an incomplete design change. [Describe test coverage new/current, TreeHerder]: Code has unit tests [Risks and why]: Low - reverting to the previous version. [String/UUID change made/needed]: None. Any string changes are not being backed out.

Thanks for creating this new bug, this is appreciated!

https://hg.mozilla.org/releases/mozilla-aurora/rev/fdeacd3d68ad https://hg.mozilla.org/releases/mozilla-aurora/rev/1b471080813d https://hg.mozilla.org/releases/mozilla-aurora/rev/01567d5dc281 https://hg.mozilla.org/releases/mozilla-aurora/rev/ea37f9d31481 https://hg.mozilla.org/releases/mozilla-aurora/rev/dc8eaa3246ed

Verified that all the patches were backed out of Firefox 42 beta 2 build 1 across platforms (Windows 7 64-bit, Mac OS X 10.10.5 and Ubuntu 14.04 32-bit) and did not found any new issues.