Rated 5 out of 5 stars

After struggling with GContacts for the past couple of weeks or so, I switched to Cardbook. Fast, easy, HIGHLY customizable. I would LOVE to have Cardbook incorporated directly into Thunderbird as it's address book! A first-rate add-on by some skilled and intuitive developers. Kudos!

This review is for a previous version of the add-on (35.7).