|User since||May 29, 2016|
|Number of add-ons developed||0 add-ons|
|Average rating of developer's add-ons||Not yet rated|
Rated 1 out of 5 stars
I have no idea why anyone would want to go through the time and trouble to create this, as Thunderbird has always had a Contacts Sidebar built into it.
In any new email window, just press the F9 key and the address book sidebar appears... This has been a feature of Thunderbird like.... forever....
Press "Write" to bring up a new email window, press F9, and the Contacts sidebar appears. You can right click on an item in the sidebar and a context menu will come up showing you different options that are available, like "create a new address book" or "add contact", etc.