Hello all, I have a bug that is rather reproducible and that I've manage to
narrow down to the version of Firefox that is shipped with Tumbleweed rather
than with Firefox itself. (i.e. identical version installed from FF website
doesn't have this problem. 

Basically, when I fullscreen my window, and I move my cursor to the very top of
the screen, such that it's selecting one of the tabs and also touching the
edge, clicking does nothing. I've gathered from this that there's a 1px
unclickable region at the top of the tabs, despite them being highlighted like
if you could click them/

I've managed to reproduce this bug on Xfce and i3. It's rather instant and I'm
willing to help troubleshoot. I've already tried downloading the default
version from the FF website, and in that version the bug doesn't appear,
despite the versions being identical. I'm suspecting that this is due to a
difference in the compilation done by openSUSE. Using nvidia G06 drivers if
that makes a difference.

Please let me know how I can help further troubleshoot the error.
Cheers