Rated 5 out of 5 stars

Excellent add-on. The best screen capture app that I have found, and I've tried many. My only gripe is that sometimes it takes a day or two to catch up with a new version of Firefox and that is a very minor issue. I am highly satisfied and recommend this add-on. BTW, I'm not seeing the ads that are complained of by others below nor did I see them in my prior version. Maybe its due to the new version or perhaps to me using AdBlock Plus, but regardless, I don't see any ads on Google searches. Thanks for the extension.

This review is for a previous version of the add-on (0.98.16). 

The FireShot from AMO NEVER adds any unwanted stuff

Hello and thanks for your review. As an author of this addon, I can say only one thing: whenever you download FireShot from AMO, it NEVER contains any unwanted stuff like ads or other malware things. NEVER.