Rated 3 out of 5 stars

I'm running iMac, 10.9.x. I have Thunderbird 38.2.0 so Google Contacts doesn't work anymore (it was working fine up until the last upgrade). So I DL'd gContactSync. It seemed to be working but now it seems to be a RAM hog in that when I have it loaded, it uses over 2 GIG of RAM. I disabled it and Tbird is back down to 360MB RAM. I'll go into my gmail and merge contacts as I noticed before using gContactSync that gmail would end up with thousands of the same duplicate email address, so not sure what was going on there...

This review is for a previous version of the add-on (2.0.5).