Since Firefox has been updated, the interface is completely unusable. The frame does not render properly. I can use Firefox only in safe-mode with the terminal. The new WebRender seems to be the problem. What did I do then ? * I entered apt purge firefox for full removal and reinstall -> Didn't work. * I disabled in about:preferences hardware acceleration -> Didn't work * Downgrade to Firefox 88 -> Worked. I love the new interface and the new render process. But if I can't use it on my home workstation, things are going to be hard for me. I added a screenshot to show the problem. Thanks by advance !