Review for Secure Addressing by Viscountfan
Rated 5 out of 5 stars
This was a really great add-on which I used all the time - until I updated to Thunderbird 45. I had to disable to allow messages to send. A great pity!
This review is for a previous version of the add-on (1.6).To create your own collections, you must have a Mozilla Add-ons account.