Review for CardBook by spothedog
Rated 5 out of 5 stars
There aren't many options to sync with a cardDAV server for Thunderbird. I've been struggling with Sogo connector for the last year, as their development has tailed off, and my suggestions for bugfixes have remained ignored.
Cardbook not only now actually works with my nextcloud/owncloud server, but it also wraps it up in a nice interface. Thanks Phillipe
To create your own collections, you must have a Mozilla Add-ons account.