Bug 40834: Create maint-12.0-mullvad branch for mullvad browser stable releases

Merge Info

Related Issues

• tor-browser-build#40834

Backport Timeline

• Immediate - patchsets for critical bug fixes or other major blocker (e.g. fixes for a 0-day exploit) OR patchsets with trivial changes which do not need testing (e.g. fixes for typos or fixes easily verified in a local developer build)

• Next Minor Stable Release - patchset that needs to be verified in nightly before backport

• Eventually - patchset that needs to be verified in alpha before backport

• No Backport - patchset for the next major stable

• Issue Tracking

  • Link resolved issues with appropriate Release Prep issue for changelog generation

Change Description

Rebase's (and resolves !fixups) tor-browser-build-s131/main to tor-browser-build/main and merge to tor-browser-build-s131/maint-12.0-mullvad

We'll push this new maint branch to tor-browser-build on Monday.