That extension is just a placebo. It doesn't exclude search results, it just hides them. If your search returns many unwanted results, enjoy paginating a handfu

That extension is just a placebo. It doesn't exclude search results, it just hides them. If your search returns many unwanted results, enjoy paginating a handful of links at a time. It filters only web searches; news, images, videos, etc. are not. I used and dropped it last year. Maybe it has improved, but I doubt it will ever replace the removed "block this site" feature Google had. That worked.