Puntuado con 1 de 5 estrellas

Say's it's not compatible with the new version. Would be nice if there is a uniformed update on all. Ervery time there is an update, half of my add-ons are not working anymore.

Esta valoración es de una versión anterior del complemento (0.17). 

So you should rather give a bad review to Thunderbird itself than on the addon?