Rated 5 out of 5 stars

by Tom Leonard on July 8, 2022 · permalink

After endless frustration with TbSync, I finally switched to CardBook. As part of the process I had to manually resolve a lot of duplicates, but ended up with seamless integration between Thunderbird, Google Contacts and my phone. If you are prepared to put in a little effort to clean up your contacts, this is a great add-on.