Review for British English Dictionary by alienfromzog
Rated 4 out of 5 stars
Installing is actually really easy just not well explained.
1. Download the add-on to your desktop.
2. Open the Add-on's window from Tools on the Menu bar
3. Simply drag-and-drop the download into the Add-on's window
4. When instructed restart Thunderbird.
AFZ
To create your own collections, you must have a Mozilla Add-ons account.