Simple and useful Puntuado con 4 de 5 estrellas

I rarely use extensions for Thunderbird though I do test a significant number of them. I find this one is both obvious to use and efficient, and moreover it reminds me of asking for a return receipt, what I was too lazy to trigger via a menu before.
It will stay in my profile.

Esta valoración es de una versión anterior del complemento (0.1).