.ico files are used for pictures on shortcuts/bookmarks in browsers and are displayed when on the actual web page.
If you would like to have your own custom icon show up in your visitors' browsers instead of the default FusionBB one, it's very easy to make the change.
Simply upload your .ico file to the /images directory. Clearing your browser cache will allow you to see the changed icon.
(Thanks to FBB members Excelsior and Dave Lozier for this topic!)
