Rated 5 out of 5 stars

yazan: phattio tarih: Eki. 17, 2018 ·

excellent add-on! needs updating for new beta version of thunderbird

This review is for a previous version of the add-on (2.1.6). 

yazan: jmozmoz (Geliştirici) tarih: Eki. 17, 2018 ·

Unfortunately, there is no beta channel anymore here on ATN. But you can download and install a new beta version of the addon (2.2.0beta2 or newer) from http://compactheader.mozdev.org/installation.html