Just as a side note, I have the same problem however I use Arch Linux and KDE4.1. The F11 solution also works for me. It seems this is a specific firefox problem. I also changed my composite manager from Compiz to KWin and the problem remains.
BFC -- Firefox opens without window decoration with Compiz https://bugs.launchpad.net/bugs/251617 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs