Actual results :
Since 112a1 build 20230309233507, the system windows buttons on macOS are misplaced to the right.

Expected results:
These windows system button should be placed to the left of the window

Regression: Okay in 102. Was okay with yesterday previous EN-US Dialy build

Probably from modern flexbox (see bug 1821304)?

Regression from bug 1820744. It exchanged the -moz-box-ordinal-group: 0; into order: -1; instead of order: 0;.

But that's the right thing to do, order: 0 is the initial value.

I tried it with 0 in inspector and it fixed the issue. Maybe it would be better to remove it to use the initial value.

Pushed by mkmelin@iki.fi:
https://hg.mozilla.org/comm-central/rev/70c3859547b3
Don't use row-reverse for the unifiedToolbarContainer on macOS. r=aleca

We'd like to backout bug 1820744 from comm-beta 112.
Because this change here was made on top of the change from bug 1820744, I suggest to backout this one from 112, too.
Does anyone disagree?

Wayne gave approval on Matrix. I'll push the backout shortly.

Should anyone request to keep this on beta, we'll have to reland with merging (if that's even possible).

backed out from 112, keeping for 113
https://hg.mozilla.org/releases/comm-beta/rev/514e8d02facd2404d11b15978a4638be4ccda281