Best and first add on you should download on a new computer with firefox Rated 5 out of 5 stars
I've been using this addon over the years, and it comes in handy with every websites.. Recommended, when you first install firefox, the first add on you should download would be Greasemonkey.. The best add on yet...,This review is for a previous version of the add-on (0.9.20.1-signed). This user has a previous review of this add-on.