Review for Provider for Google Calendar by Joe
Rated 1 out of 5 stars
Vasilis Ant's procedure a few posts down works just fine to resolve the 403 error. Oddly enough, Provider is still working on 2 of 3 computers. Not sure why the difference.
This review is for a previous version of the add-on (91.0.4).To create your own collections, you must have a Mozilla Add-ons account.