Crystal Blocker is a Browser Hijacker that has the potential to cause headaches to many users. It does that by taking control of your browser settings, initiation repeated redirects, and flooding your screen with various unwanted ads. These activities may not be overtly harmful, all of them may carry hidden risks: your online privacy could be jeopardized, and you may be redirected to questionable websites, while the overall speed of your browsing experience take a hit.