Rated 5 out of 5 stars

by mdo1 on March 13, 2021 ·

Best implementation of CardDAV/vcard (i.e. using with a SOGo server backend in our situation). Very active and responsive developer.
Would love for this to be the standard Thunderbird address book!

This review is for a previous version of the add-on (56.9).  This user has other reviews of this add-on.