Yettwasezmel 1 ɣef 5 n yetran

sɛur dvrennes di Sept. 11, 2014 ·

Cannot install. Though top of the article says compatible from 17.1 to 34.0 it does not install on version 32.0.
Pity, I need it desperately.

This review is for a previous version of the add-on (1.1). 

sɣuṛ Jonathan Protzenko (Aneflay) di Sept. 11, 2014 ·

Have you followed http://kb.mozillazine.org/Extensions_%28Thunderbird%29#Installation ?