This is now fixed. If you try to update Firefox with it open, you get a lightbulb image in the notification area. When clicked on, the following message is displayed:
Firefox-3.0 restart required Firefox-3.0 has been upgraded (or reinstalled) and must be restarted. Please quit and restart your web browser now. -- Firefox produces strange error messages if left open while updating https://bugs.launchpad.net/bugs/240358 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