Rated 5 out of 5 stars

Works fine on Thunderbird 60.2.1, thanks!

ps. But i couldn't find it on search, had to install in manually "from file".

This review is for a previous version of the add-on (1.4.4). 

In fact, as long as the addon has not been verified (it's been 3 weeks), it does not appear in the search results of the site.