An Excellent Addition

If you use any Mozilla-based browser, this site has an essential addition to your setup: http://texturizer.net/firefox/adblock.html. Follow the userContent.css link to figure out how to set up that file, then paste this code in. It blocks all kinds of ads, going beyond Mozilla's built-in pop-up blocker to blocking ad graphics and ad Flash animations. It's careful to only blacklist ad servers and images that are ad-sized, so it won't block good graphics. It's much like the Adblock plug-in for Firefox except that it kills all ads in one fell swoop.