Rated 1 out of 5 stars

Probably starting with 17.0.6, Lightning stopped working and stops my Thunderbird a few seconds after I start it. Only disabling the add-on in safe-mode helps me recover. I saw that other users seem to have the same problem. This is a real show-stopper.

Other than that and before this, it worked nicely and I really liked using it. One star for now. Will up to five, once it works again...

This review is for a previous version of the add-on (1.9.1).