Rated 4 out of 5 stars

It works pretty well with my iCal file, I use it in Thunderbird though, as I try to use as few addons in Firefox as possible, for performance reasons.

Suggestion: Please implement an option to completely turn off the alarms set by events to pop up.

I use a different app on my phone for that and I really hate the duplicity. I dont want the alarms to pop up on my PC as well. (There even seems to be a bug, displaying alarms for events that ended way way in the past)

This review is for a previous version of the add-on (2.1.5.3.1-signed).