Review for Provider for Google Calendar by Greguigul
Rated 5 out of 5 stars
Just update last Google Calendar Plugin and reconnect: works like a charm.
With new outcoming Thunderbird's updates, DO NOT update the very first day but wait 10 days. It gives developper's a bit of time to test their module's update.... That's it
To create your own collections, you must have a Mozilla Add-ons account.