It works if you fallow the directions Rated 3 out of 5 stars

IT does what it supposed to do.What I found is most videos are blocked but if you fallow these - Instructions: "The add-on displays an icon in the location bar if a page initiates Google requests. You can block or unblock the requests by clicking the icon. Your preference will be remembered the next time you’re on the site." Reading things helps a lot.... IT doesn't save the site as it says(or I'm doing something wrong). Which makes It annoying to have to unblock the videos every time...