Rated 5 out of 5 stars

by seyyahi on Jan. 12, 2025 ·

12.01.2025 - Thunderbird cannot connect to Yahoo Calendars at the moment. This is most probably due to Yahoo's another interesting decision. We need this extension more than ever and because of Thunderbird's interesting choice, this extension doesn't work anymore. Thank you Mozilla as you disappoint me once more. We want this extension back please.

by John Bieling (Developer) on Jan. 12, 2025 ·

Those are some strong words. What does Mozilla have to do with it? It was my decision that I do not want to maintain this add-on anymore, because the additional work is not justified by the incoming donations and the small benefit for users.

If something with Yahoo is not working, better file a bug against the calendar component of Thunderbird.
https://bugzilla.mozilla.org/enter_bug.cgi?product=Calendar&component=Provider%3A%20CalDAV