Rated 5 out of 5 stars

Just in case anyone is still running Thunderbird 52 for compatibility with legacy addons and is wondering why tbsync has forgotten your NextCloud CalDAV / CardDAV account information and stops responding when you try to add a new CalDAV or CardDAV account: The problem isn't tbsync, it's Provider for CalDAV & CardDAV. As of version 0.11, Provider for CalDAV & CardDAV is now broken in Thunderbird 52, Rolling back to version 0.10 solves the problem.

Đánh giá này là cho một phiên bản trước của tiện ích (1.1). 

Thanks for catching this. I updated the min version setting to TB60.