This addon is a god-send. Websites have become a uncontrollable arena that doesn't allow the user any rights as to what happens. The code from a site causes browsers to slow down with all the crap it is trying to do that users don't need or want. This addon takes back that control and forces browsers to do what a user wants and not what the crappy code on the website says to do. I don't know how you can surf the internet without this addon.