Rated 4 out of 5 stars

by coucou-1364596093.77 on Sept. 15, 2018 ·

Doesn't work with TB 59.

Edit: now it works. Don't know why...

This review is for a previous version of the add-on (3.0.0). 

by Josh Geenen (Developer) on Sept. 15, 2018 ·

Please verify that you are using version 3.0 or later. Thunderbird changed many of their APIs in versions 59 and 60, which broke compatibility with gContactSync 2.