Developer reply by Philippe V.
Rated 4 out of 5 stars
Almost perfect,
I use it for synchronization with owncloud contacts, but one feature is missing :(
Distribution lists synchronization doesnt work :(
Any walkaround?
the distribution lists (and also the categories) are perfectly synchronized on my OwnCloud instance... may you contact me by email (cardbook.thunderbird@ gmail.com)
[Edit : user asked he finally succeeded :O)]
To create your own collections, you must have a Mozilla Add-ons account.