Review for Provider for Google Calendar by Lucas Parra
Rated 4 out of 5 stars
Version 0.5.3 gave me serious trouble and scary moments with thunderbird freezing up on me ans some 600 alarms. Fortunately 0.5.4 was posted the same day with a bugfix and it works fine again.
This review is for a previous version of the add-on (0.5.4).To create your own collections, you must have a Mozilla Add-ons account.