Review for TabAddressbook by Topoldo
Rated 5 out of 5 stars
It seems promising! It onlly lacks an icon on the right side to be added near to the Activity & Events ones just below the main menu. Anyway I don't know if this is possible with the new standards of TB.
This review is for a previous version of the add-on (2.0).To create your own collections, you must have a Mozilla Add-ons account.