Web browsers built upon the same technologies that power Firefox are fairly common. (Flock, which integrates its user interface with social-networking sites, is one of the better known examples.) But there are also dozens of applications that rely on at least some aspects of the Mozilla platform.
Here are 10 useful desktop programs that run on the open-source Web browser's native technology. All of these applications are free for you to download and use -- and only one is a Web browser.