Henning, can you test whether the latest firefox update fixed the problem, by any chance? The upstream bug report was closed, which makes me think it should be fixed, so your confirmation would be welcome.
** Changed in: firefox (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1951698 Title: [upstream] under wayland items in menu bar sub-menus cannot be moved To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1951698/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs