My Firefox windows continuously get hidden behind the top bar of ubuntu 21.10. I can get it back to normal by changing the windowsize twice (superkey+left arrow, and than superkey+upper arrow). Is there a way to get this back to normal. I have tried to reinstall firefox but that did not work.

  • Status please...
    – heynnema
    Dec 29, 2021 at 14:47
  • Solved! It works since updated 🎅
    – Ricoter
    Dec 30, 2021 at 15:45
  • Did you install FF 94 beta, FF 95, and/or use my answer? ps: you have WAY too many FF extensions installed.
    – heynnema
    Dec 30, 2021 at 15:46
  • 1
    By looking at your image file. You have more than a dozen installed. Didn't my answer work? I'm not sure that FF v95 really fixed your original problem.
    – heynnema
    Dec 30, 2021 at 18:52

2 Answers 2


This was a known problem and the solution is stated in Ubuntu's release notes.

The firefox snap has a known renderer process crash when switching VTs or resuming from suspend. This is caused by the same issue that renders WebGL non-functional in Wayland sessions. The problem is fixed in the upcoming 94.0 release (beta at the time impish is released), so a possible workaround is to temporarily switch the snap to the beta channel:

snap refresh firefox --beta
  • Don't use a beta. Why not just use Software Updater and you'll get Firefox v95?
    – heynnema
    Dec 27, 2021 at 2:28

Position the mouse cursor in the current Firefox window, hold down the SUPER key, hold down the left mouse button, drag the Firefox window out from underneath the top panel.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.