Torrent Server Handler was developed to make it easy to integrate FireFox with TurnKey Torrent Server, a free file download and sharing server which is part of the TurnKey Linux Virtual Appliance Library. TurnKey is an open source project (just like FireFox) which is developing a library of free pre-packaged servers that are ready-to-use in minutes. No configuration required - they just work!
What is TurnKey Torrent Server?
TurnKey Torrent Server combines MLDonkey for P2P file downloading, Samba for Windows-compatible file sharing and ClamAV for anti-virus scanning. You can manage it from anywhere using a web browser. It's especially useful for centralizing file sharing on a shared network.
Download it free and learn more here (documentation, screenshots)
You can configure the server address and port the handler connects to via the Firefox Add-ons menu:
Tools -> TorrentServer Handler -> Preferences
To use, simply click on a download link (torrent, ed2k, magnet, sigdat) or right click on any link and select "Save with TorrentServer".
This will submit any file type for downloading.