Google Toolbar with Free Pop Up Blocker
The Google Toolbar is totally free, and has a built in pop up blocker.
The Google Toolbar is mainly a built in search from - you can search Google without having to first visit Google's site. The free pop up blocker is built into the toolbar itself, and eliminates pop ups.
Other functions of the toolbar include filling in forms with one click and highlighting search terms on a web page.
To use the Google Toolbar, you must be running on Windows, and use Internet Explorer 5.5 or above. The toolbar is available in several different languages.
To download the Google Toolbar with free pop up blocker, visit this link: