This happened to me after accepting today's update, and restarting firefox has not helped.
What is more both help-about and edit-preferences produce an empty window of size zero. I get a tiny border of zero width and small height, and when stretched to a reasonable size it has no contents. ** Attachment added: "screenshot of assertion" http://launchpadlibrarian.net/30076964/Screenshot-Assertion%20Failed.png -- [MASTER] Update to Firefox causes errors https://bugs.launchpad.net/bugs/338785 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