Rated 5 out of 5 stars

Definitely an awesome addon to have when you love to sit on your computer for hours and randomly surf the web, makes finding sites matching your interests a lot easier and turns up a lot of sites one might not find otherwise! Also awesome that it's still working in 4.0 even though it's not listed as compatible (though you'll need to have the compatibility addon in order to enable it).

This review is for a previous version of the add-on (3.64).