Rated 2 out of 5 stars

by feffer777 on Nov. 17, 2018 ·

I've used this add-on successfully for years on Thunderbird running on linux and really grown to depend on it. Unfortunately it seems to be broken now...hope it gets fixed

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

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

That works somewhat until TB version 63.0, then it will completely stop working. 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.