Think the issue is related to Compiz. Pressing F11 and then F11 again whilst in Firefox will return the toolbar. More info here:
http://ubuntuforums.org/showthread.php?t=981306&highlight=firefox+compiz+f11 -- cannot close firefox unless I completely shutdown my computer. OS ubuntu 8.10 https://bugs.launchpad.net/bugs/331974 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
