Pasting this for SEO: The error is:
"A newer version of Thunderbird may have made changes to your profile which are no longer compatible with this older version. Use this profile only with that newer version, or create a new profile for this installation of Thunderbird. Creating a new profile requires setting up your accounts, calendars and add-ons again." I think running with --allow-downgrade is also a workaround, in addition to the edit mentioned in comment #15 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851936 Title: User profile won't load after upgrade - prompt to create new profile To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1851936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
