Review for Provider for Google Calendar by ChristopherPovey
Rated 4 out of 5 stars
Was working fine until 68.* release of Thunderbird! Fortunately "JLJ_M" work around fixes the constant login prompt and locking up of a Google calender entry.
This review is for a previous version of the add-on (68.0).To create your own collections, you must have a Mozilla Add-ons account.