Reviews for Provider for Google Calendar by Szabi
Rated 3 out of 5 stars
The solution for more than 1 calendar in Thundebird:
1. copy the "secret address in iCal format" link from google calendar settings
2. add a new calendar to your TB, and insert this link
Rated 3 out of 5 stars
Today it started to report error 403...
Now I used this temporary solution (https://support.mozilla.org/en-US/questions/1355356), but it can not synchronize the google tasks and can not handle if other google calendars are shared with you.....
To create your own collections, you must have a Mozilla Add-ons account.