Review for Provider for Google Calendar by David Fong
Rated 4 out of 5 stars
After updating Thunderbird to 31.2 today, I also updated Provider for Google calendar to 1.01 and Lightning was updated to 3.3.1. At this point, upon TB startup, I was prompted for what looks like password for my Google Calendar, however, the popup window was all blank - couldn't enter anything.
After doing some research, I found that some people had better luck with reverting back to version 0.32, so I did the same, and my calendar works now.
I am running on Windows 7 Home Premium (up-to-date).
To create your own collections, you must have a Mozilla Add-ons account.