Comment 4 for bug 1780790

Thanks for the report Pedro. Let's try and narrow down the issue first, before reporting it upstream. I wonder if this could be specific to gnome shell. I've tested here (I'm on Ubuntu 18.10 and running firefox beta (63.0 beta 13) and I cannot see the issue.

Can you try the same setup with a Unity session (need to install unity-session)? Or maybe try a 18.10 live session and see if the issue is fixed there.

Thanks!