Review for Provider for Google Calendar by dalambert
Rated 4 out of 5 stars
I was looking for this possibility for months, browsing through hundreds of forum posts. Now it is finally possible to sync with google and thus make it possible to access the calendar from everywhere and having the comfort of a fat client at home.
Why "only" 9? I am still missing the offline functionality, but I was told this to be a bug of lightning.
To create your own collections, you must have a Mozilla Add-ons account.