Rated 5 out of 5 stars

I was just wondering if you are going to update the extension to work on 78.x. Love the extension. Would hate to lose it.

Edit: I downloaded v4.4.0 and it works great on TB 78. Thanks!

This review is for a previous version of the add-on (4.4.0). 

The latest version (v4.4.0) already supports Thunderbird 78.*.