The screenshot option in Firefox is not useful because we cannot see the entire browser window. This only shows what's in the window. Do you have the same issue with Firefox in [https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#w_how-to-start-firefox-in-4troubleshoot-modesf5safe-modesf Troubleshoot Mode]? I'm in it everyday at work and home with no issues. see screenshot What OS? What Desktop? X11 or Wayland? Try downloading Firefox from Mozilla. Download, unzip, and run '''firefox-bin''' from the folder and see if you have the same issue. https://www.mozilla.org/en-US/firefox/all/#product-desktop-release