Reproduced the issue on Firefox 135.0a1 (2024-11-27) on Ubuntu 24.04 by following the infos provided in Comment 1.
The issue is fixed on Firefox 135.0b9 on the same system. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2078774 Title: Fullscreen Firefox is not being rendered as direct scanout in GNOME 46/47 To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/2078774/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
