I found it really hard to find good answers to this problem - It was such a shock, and so important, that I was surprised this site was not no.1 in a Google search.
After hours of trying different things and searching, I reverted to 57.2 and locked that in. Then, I accidentally came across https://addons.thunderbird.net/en-us/ which contained the https://ftp.mozilla/pub/calendar/lightning/candidates/ solution - in French. That worked for me. I know it's free software, and I've been using it for years, quite contentedly, but .... This is not the first time that a Ubuntu Thunderbird update has broken something important. If this is not a bug, what it is? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/1797945 Title: Lightning incompatible with Thunderbird 60.2.1 Status in thunderbird package in Ubuntu: Confirmed Bug description: Hi Today I got the update from Thunderbird 52 to 60.2.1. Unfortunately Lightning doesn't work anymore. Thunderbird reports that Lightning is incompatible with Thunderbird 60.2.1. Regards, Ettore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1797945/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
