Rated 4 out of 5 stars

Another thing I miss, is the possibility to store addresses directly on a different location, e.g a cloud. This in order to synchronize with other computers. Synchronizing with other local computers does not function now. The files get corrupted, probably because the prefs.js file also needs to be synchronized at the same time. But this again causes problems with other add-ons. Maybe cardbook needs an own prefs.js file.

This review is for a previous version of the add-on (33.4). 

not sure to have correctly understood : of course it is possible to store contacts on a cloud... in CardBook, just add a remote address book... (if you have others questions : cardbook@cardbook.icu)

Rated 4 out of 5 stars

Very usefull add-on. Should be part of Thunderbird. What I miss is a trash to restore accidentally deleted addresses. And I miss a back-up function. Could also be export to .vcf of all address books at once. These functions would make it realy professional.

This review is for a previous version of the add-on (33.4). 

in next version, it would possible to undo/redo contacts modifications ;O)

Rated 4 out of 5 stars

The addon gets better and better. Great possibilities. The possibility to work with categories was the thing that did move me towards thunderbird, after 20 years of MS Outlook. :-)
And good support of Philippe. A good manual would help.

This review is for a previous version of the add-on (32.9).