does firefox support direct torrent downloads? If so what's the secret? If not what's the solution?
Support direct torrent downloads? I don't quite understand you question. All download you make, you are assuming the responsibility we do not control or make any changes to downloads.
Firefox is a web browser not a BitTorrent client.
There are various BitTorrent extensions at https://addons.mozilla.org/en-US/firefox/search/?q=BiTtorrent that works with say a BiiTorrent client or searches for example.