Thanks for the confirmation. The problem hasn't been reported by anyone else AFAIK, so it looks like an isolated profile corruption. At this stage I'm not sure what to suggest, other than importing your bookmarks and extensions from the old broken profile to the new one (IĀ understand it's not a satisfactory solution, merely a workaround).
** Changed in: firefox (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1845422 Title: Firefox don't start To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1845422/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs