Review for Provider for Google Calendar by Gary Rumble
Rated 3 out of 5 stars
When it works, it's great. It seems that after a period of time, however, it can't connect to Google anymore and the only way to restore it is to exit Thunderbird and restart it.
This review is for a previous version of the add-on (1.0.2).To create your own collections, you must have a Mozilla Add-ons account.