Rated 5 out of 5 stars

Although we had some issues going from Thunderbird 60 to 68 and issues with Cardbook not reading mab files in earlier versions, we have now very successfully updated to version 42.9. The developer's response to the issues was responsive and helpful and I would be happy to recommend Cardbook to anyone wanting a high quality address book solution for Thunderbird.

This review is for a previous version of the add-on (42.3). 

contact me by email : cardbook (a) cardbook.icu