FYI, bug #445055 produces a similar behaviour and error message, in installations lacking the condition described by Luis (comment #3)
-- An error occurred while loading or saving configuration information for firefox. Some of your configuration settings may not work properly. https://bugs.launchpad.net/bugs/426412 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
