Blocking pop-up windows simple solution
If you're not ready to install new software, you can still beat pop-up advertising with a simple tweak to your web browser's preferences. Pop-up windows are triggered by computer scripts embedded in the web page code; by disabling these scripts from running, you can keep your browser from displaying the advertisements.
The drawback, of course, is that many web sites use scripts for less offensive purposes than pop-up advertisements. Disabling scripts will hamper your ability to view or use some web sites correctly. If you find you are having trouble with an online tool or game, you can always turn scripting back on.
To disable scripts in Internet Explorer for Windows:
Find many Windows Freeware Pop-Up Stoppers here.
Pop-Up Stopper FREE Edition for Windows is a popular free pop-up blocking utility for Internet Explorer and Netscape. This program is completely free, and does not require registration to use or download.
Popup Killer is another free and recommended Popup Blocker.
The free Google and MSN Toolbars both freature a pop-up blocker.
Pop-Up Zapper for Mac OS 9 and OS X will block annoying pop-up ad windows in Internet Explorer. This program requires payment.
Web Washer for Windows and Macintosh
WebWasher Classic is easy-to-use and very effective Internet filter which runs as a local
proxy server and is available for home and educational use free of charge.
You can block pop-up windows using a standard built-in feature of the Opera Web Browser.