Review for Provider for Google Calendar by franc
Rated 5 out of 5 stars
Thank you for this Add-On, I use it since long with lightning.
Since some days I noticed that there is no entry anymore and I read here about it. I just needed to delete the google calendar in Lightning and recreate it, then I was asked to allow the Add-On to edit the Google calendar and again it worked.
It is a new system now, previously access was through the XML string in the calendar settings on google, now it is through a session string I guess.
To create your own collections, you must have a Mozilla Add-ons account.