Rated 5 out of 5 stars

Appreciate all the work. Seems to sync my contacts very nicely. It transferred over all my groups also.
Kudos!

http://www.zindus.com/download-extension

Tip: I didn't need to, but it is always a good idea to back up your address book.

This review is for a previous version of the add-on (0.8.13.3).