Review for Provider for Google Calendar by Mike Greenberg
Rated 2 out of 5 stars
I've been using Provider for Google Calendar for years. It generally does the job of syncing Lightning & your Google Calendar, but I have an unresolved issue. Currently, it's only syncing in one direction: Google Calendar to Lightning. Events added to Lightning don't get added to Google Calendar. I filed a report on bugzilla as others are also reporting the issue.
This review is for a previous version of the add-on (0.18).To create your own collections, you must have a Mozilla Add-ons account.