Editors' Note: The Download Now link will prompt a local download of the Firefox extension. To install the extension directly, open the file using your Firefox browser.
Adblock is a content filtering plug-in for the Mozilla and Firebird browsers. It is both more robust and more precise than the built-in image blocker. Adblock allows the user to specify filters, which remove unwanted content based on the source address. Just add a few filters. Every time a Web page loads, Adblock will intercept and disable the elements matching your filters.