Rated 4 out of 5 stars

I really miss the functionality of Thunderbirthday in the newest Lighting for Thunderbird! Please update the add-on so it can be used again.

This review is for a previous version of the add-on (0.2.7). 

Please understand that I cannot follow every minor change in the development of Lightning. I'll try to release a new version short before the final version of Lightning, when changes become less frequent. Also, you might try to just change the maxVersion value in install.rdf.