Rated 5 out of 5 stars

by Firefox user e6b1fd on Nov. 11, 2019 ·

Prima, funzt, jetzt fehl tnur noch das to tray
it works fine, now we need the - to tray

This review is for a previous version of the add-on (1.0.0.1). 

by rsjtdrjgfuzkfg (Developer) on Nov. 23, 2019 ·

This add-on is not intended to move Thunderbird to the tray. Doing that from an add-on is no longer realistically possible, so that feature will never be implemented. But there are separate programs that can move any program to the tray whenever you minimize it – this add-on can be used in combination with those programs to get Thunderbird into the tray when closing the window as well.