Rated 4 out of 5 stars

Works as advertised, but depending on how many buttons you have on your main toolbar, you may need to remove some in order for this one to show up.

Rated 1 out of 5 stars

It never showed the claimed button in the main toolbar even after relaunching and enabling/disabling the addon.

Version 1.7
Thunderbird 91.9.1
Linux Mint 20.3 cinamon

Rated 5 out of 5 stars

Great tool working perfectly, thanks to the author!

This review is for a previous version of the add-on (1.5). 

Rated 5 out of 5 stars

Vielen Dank für diese Erweiterung! Ich musste allerdings wieder die Hauptsymbolleiste einblenden, damit man das Icon der Erweiterung sehen konnte.

This review is for a previous version of the add-on (1.5). 

Rated 5 out of 5 stars

Great tool for checking which of your Add-ons are ready for this year's new Thunderbird version (91). Very helpful!

This review is for a previous version of the add-on (1.3).