Rated 5 out of 5 stars

I switched to Cardbook because of incompatibility of Gcontactsync with TB78.x.x and it works very nice... Gcontactsync must have been incompatible for a while, since i'm missing 50! contacts compared to my Google account... With Cardbook the numbers match!

This review is for a previous version of the add-on (52.4).