The CalDAV & CardDAV Provider for TbSync to sync contacts, tasks and calendars to Thunderbird.
Most CalDAV & CardDAV servers provide a discovery service, which allows one to use just the plain server name (FQDN) like "cloud.server.com" as server URL. TbSync will find all available calendars and address books and there is no need to know any specific URLs for individual address books or calendars. If this does not work because your server does not provide the discovery service, you have to enter the full path to the dav server itself, like "cloud.server.com/SOGo/dav".
This provider also includes some pre-defined service profiles for easy setup of accounts of iCloud, Yahoo!, Fruux and others.