Hey Maik, Thanks for the hint! It did help and firefox is now visible. I didn't have the problem in 13.04. It seems new to 13.10, but I'm not sure if it happens because of old settings coming from KDE in 13.04 or always an issue in 13.10.
If somebody wants to point me to where the settings are saved, I could upload for better debugging. Cheers! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1242262 Title: Kubuntu: Firefox running but not visible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1242262/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs