I want to block a url from accessing my browser. The url in question, djbsaqja.co.cc, flashed a pop-up saying that my computer was infected with a dangerous virus and that "Windows Security" required that I download a program to fix it. I maintain realtime virus protection, but ran a manual scan anyway, which proved that I was clean. The url listed above would not let me out of an unending chain of popups, demanding that I download their tool. Instead, I opened a new Firefox session (it was the only way I could re-enter Firefox without this rogue url taking control), then cleared out my history, cache and cookies. I'm clean...and now I'm back in control with, I believe, no damage. But since I wrote down the url, is there a way that I can block from accessing my browser again? Thanks for the help.