One (temporary) option is also to downgrade Thunderbird back to the previous version (in my case 52.7). I used 'Synaptic Package Manager' to downgrade and lock in the old version. I'll wait a while before updating.
There may be better solutions posted already but this is also one possibility for those who don't mind to wait a while. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1797945 Title: Lightning incompatible with Thunderbird 60.2.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1797945/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs