I honestly love this extension so much. Sometimes an ad or pop-up will sneak through, but for the most part it has astronomically improved my experience on the internet. No YouTube ads when I use it through Firefox. No getting bombarded with huge advertising banners on every article I try to read. No peering at the content of a page through a tiny peephole surrounded by 20 different ads. It's clean, it's calm, it's easy. I highly recommend it, I really do.