Review for Duplicate Contact Manager by allann72
Rated 4 out of 5 stars
I'm using Google Contacts 0.6.40 add-on. It works well even it display a message that the add-on might not work properly with contacts more than 1000. Open Address Book and you will see on the top menu "Duplicates". Click, read and follow the Instructions. That's simple.
This review is for a previous version of the add-on (0.8.2).To create your own collections, you must have a Mozilla Add-ons account.