Rated 5 out of 5 stars

This app works great! Due to some changes on Google's side (i.e. different CALDAV link), I was having a lot of trouble over the past two days getting my calendar to sync. However, I found this blog post: https://blog.mozilla.org/calendar/2013/09/google-is-changing-the-location-url-of-their-caldav-calendars/ from the Thunderbird/Lightning team, which helped me to sort everything out! Keep it up!

This review is for a previous version of the add-on (2.6).