Syncing Tasks & Calendars Rated 5 out of 5 stars

I've just started syncing my Thunderbird Tasks and Calendars with and it works great! I'm using the Funambol sync add-on. You can only use one calendar but you can have multiple categories within a calendar. Tasks are attached to the one calendar.

Memotoo can sync with Google Calendar including tasks.

This review is for a previous version of the add-on (1.4).