Rated 4 out of 5 stars

by Jacques shellac on Oct. 17, 2018 ·

Not compatible with TB 60.2.1, currently disabled.

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

by Josh Geenen (Developer) on Dec. 4, 2018 ·

This add-on does not work properly in TB 60.0 and later. I'm tracking my progress towards supporting 63+ in https://github.com/jdgeenen/gcontactsync/issues/121. Thunderbird's rate of making breaking changes has outpaced my spare time, so your patience is appreciated.