Rated 5 out of 5 stars

I see the same problem with other add-ons e.g 'Filter on Folder Button' add-on.
Probably it is a bug of Thunderbird.

This review is for a previous version of the add-on (3.5). 

Rated 4 out of 5 stars

Unfortunately doesn’t work correctly with Thunderbird 91.10.0.
I should turn off the addon and then turn on it every time.

This review is for a previous version of the add-on (3.5).