The same thing happens for me, and it also affects the bottom panel. If I press F11 twice (fullscreen and then back) it fixes the issue until I restart Firefox.
I haven't seen it in any other app.
The same thing happens for me, and it also affects the bottom panel. If I press F11 twice (fullscreen and then back) it fixes the issue until I restart Firefox.
I haven't seen it in any other app.