Assegnate 1 su 5 stelle

Simply doesn't work. No instructions for HOW it's supposed to work, and nothing I try shows any kind of options.

Questa recensione riguarda una versione precedente (5.0.0) del componente aggiuntivo. 

please make sure you selected unified view mode. if you look at end of list. you see that email folders disappears. look at screenshot of addon in this page to find differences:

https://addons.thunderbird.net/en-US/thunderbird/addon/hide-email-folders/