Rated 5 out of 5 stars

yazan: StevensonJR tarih: Kas. 5, 2019 ·

The best extension. Don't understand why it is not default.
Merci à 'auteur !

This review is for a previous version of the add-on (1.9.1). 

yazan: Michel Renon (Geliştirici) tarih: Kas. 5, 2019 ·

Thanks for your feedback !
For your information, there is ongoing work to enhance the default UI of compose in future thunderbird. See bug 440377: https://bugzilla.mozilla.org/show_bug.cgi?id=440377