Rated 5 out of 5 stars

by Gert Bysee on Jan. 4, 2021 ·

Vast improvement! The standard address book is clumsy and barely adequate. The gContactSync extension helped but was also lacking. Cardbook is in a different league, with due allowance for the way vCard works. (It's good, not perfect.) For the first time in decades (no joke) I have all my contacts sorted and synchronised in one address book just a few days after installing Cardbook

BTW the review by Thecoalcracker that says there is no documentation is wrong. There is fairly thorough documentation via the GitHub developer's page.

This review is for a previous version of the add-on (55.0).