I'd rate this as 3.5 out of five. I like to watch online movies and find that a couple of sites have these additional pages that pop up (gambling, games etc), in the past my other add ons would block these pages. This extension doesn't , it does show one of my sites as a riskware site, even though it is one I haven't had problems with. What it does do well is speed up access to pages, something new that I didn't have in the past when on a site and moving through pages is Favicon pages appearing when I click on the next page number. It is a beta version so it is a work in progress.