Custom web protocols

From ActiveArchives

Web browsers, like Firefox, can be configured to handle protocols other than the "default" web protocol of HTTP. This functionality has been used in commercial services like Apple's use of an "itunes" protocol to link directly into the iTunes application, or also by Internet radio service lastfm. Magnet links are an interesting use to "link" into content on P2P networks.

Unfortunately, the interface for adding new protocols is less than simple, this article describes it.