about firefox it has a custom titlebar - the UI packs the tabs on the titlebar in order to save screen space. google chrome is the same and also an exception to the bug.
about the snap, it appear to have permission structures involving UI- related middleware (I am guessing), so fixing the interactive user UI session may have left the middleware unfixed/inconsistent? -- 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/2013216 Title: Single click on title bar does not transfer focus to target window (server side decorations in Xorg sessions) To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/2013216/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs