Hi, "This one i do not know" is not the best subject line ;). The only tip I have is that you shouldn't trip yourself up and rely on assumptions instead of rational troubleshooting. Since an upgrade a few days ago, my selected GTK themes were suddenly replaced for the 2nd time today during a session by some totally broken themes, so that I had to log out and log in again. I have some suspicions, but no time for rational troubleshooting right now. Only when I have the time to investigate the problem rationally will I perhaps try measures such as downgrades. If you have suspicions because you see some kind of pattern, it's easy to waste valuable time with pointless actions. Now for a few more ideas. How does Firefox behave when you start it with "--safe-mode", with a new profile, or even from a newly created user account in which everything is default? Is there anything unusual in the log files? ~/.xsession-errors, journalctl, ... Regards, Ralf
