Yes I saw this bug with Firefox in 18.04 yesterday, so it's still an open problem.
Maybe it is just Xwayland, but worth noting I have seen similar issues in gnome-mpv when trying to run it as a pure Wayland app: https://community.ubuntu.com/t/hardware-accelerated-video-playback/304/4 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1706476 Title: Mysterious shadow around window when check marking an option box inside of window To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1706476/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
