I get this problem too, on Feisty Kubuntu with AMD64 and nVidia X driver. I have a feeling it is related to that.
However I have found a workaround that works every time and that suggests to me it is something in the environment. When this starts happening I get "Segmentation fault (core dumped)" whenever I try to start Firefox from the shell, and it also won't start from the menu. However, if I ssh to localhost, and then start it from the shell there it works fine! [EMAIL PROTECTED]:~$ firefox Segmentation fault (core dumped) [EMAIL PROTECTED]:~$ ssh localhost DISPLAY=:0 firefox <firefox pops up!> So I am sorted for now, but this is annoying. Short of using this trick, only restarting the X server or rebooting fixes the problem. Firefox is a pretty essential app so I hope this gets fixed soon. Let me know if I can help. -- Firefox Segmentation Fault Requires Reboot https://bugs.launchpad.net/bugs/60236 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs