Rated 4 out of 5 stars

A great add-on thank you, allowing me to use my Google Contacts right in Thunderbird. However, since I downloaded Thunderbird 128ESR, on that version of TB Cardbook does not work as my address book, and TB instead always uses the built in address book. I cannot see how to change that - on TB115 Cardbook automatically took over as the default address book. I am using the latest version of Cardbook (94.1). I have returned to TB115 and Cardbook 94.1 works just fine there.

This review is for a previous version of the add-on (94.1).  This user has other reviews of this add-on.