An image linked to the page with a <link /> element...
You need a way to inform the browser about what type of file it's going to download. For instance, if it doesn't support the file type, it won't spend time downloading it.
The attribute used for that is type, and is strongly recommended..
okay, so what would the code look like to include the type?
How could the browser guess that there is a file ? How could it guess where to retrieve it ?
Its also for when people bookmark your site ie and ff will cache the icon and use it next to your bookmark. Its also meant to be something people will stay hey look a blue fancy F it must be Frihost.