Great update Rated 4 out of 5 stars

A great step forward. I didn't like Lightning take so much space from my mail folders list. Now it's on a separate space on the right, can be switched on and off by a simple click... very good. And yes, all calendars were disabled, I had to enable them manually. That's why it's an 8, not a 10.

This review is for a previous version of the add-on (0.7).