Assegnate 5 su 5 stelle
This is really a very useful addon. Unfortunately, it does not work anymore with Thunderbird 57.0b1. I had to start Thunderbird in safe-mode and deactivate it.Questa recensione riguarda una versione precedente (4.7.1) del componente aggiuntivo.
Please check here:
It's complicated but there are some explanations and a working test version available there.