Yettwasezmel 1 ɣef 5 n yetran

sɛur gmeades di May 29, 2016 · aseɣwen yezgan

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.