Rated 5 out of 5 stars

this add-ons is very useful. but it doesn't work with Thunderbird 68.1.2

please update and make it compatible.

This review is for a previous version of the add-on (0.9.12). 

Beta version is available here. Please try it.
http://hogiblog.blogspot.com/2019/08/supporting-thunderbird-680.html