Rated 1 out of 5 stars

My school uses 2 part authentication with DUO and when the Provider for Google Calendar trys to login, it shows the login screen, but then fails to allow the page to send the request to my phone. The page aborts (I think, I can't see, but have sent some error messages and screens) and then nothing happens.
So basically my calendar is now offline. If I use iCal I can see any changes I make through the Google calendar interface, but I cannot make any changes through the Thunderbird calendar interface, PLEASE fix.

This review is for a previous version of the add-on (3.3).