Firefox minor release 0.9.2 is available from

http://www.majorgeeks.com/download2248.html

Uninstall the old version first if you're already using Firefox.

BTW, Firefox (and other browsers) can be used to download Microsoft Updates. IE is not required.

On the other hand, some other downloads don't work with Firefox. If an FTP download fails without a meaningful error message, or the downloaded file is corrupt, try redownloading with IE.