I've experienced a similar problem. All my navigation buttons were greyed out and it seemed as if all my settings weren't being loaded. I would get a blank page upon load. Turns out some of my files in my .mozilla directory were owned by root. I solved it with a quick "sudo chown -R user:user ~/.mozilla" where "user" is your username.
-- after an UBUNTU update a number of basic functions and all new functions in Version 3.0.1 not longer available https://bugs.launchpad.net/bugs/251842 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