Rated 5 out of 5 stars

Very useful Addon. New Version for Thunderbird 78 would be nice.

This review is for a previous version of the add-on (1.2). 

Dear BillG1428,
I had to rewrite the Add-on completely and now, the main task seems to be don: Just uploaded a new version to addons.tunderbird.net. Hopefully, this will be available in the next few days.