Doesn't work with major torrent sites like miniNova. Try "TorrentServer handler" instead Rated 2 out of 5 stars

The main problem with this extension is that it only handles torrent URLs that end with the *.torrent suffix. That means users of major BitTorrent sites such as Mininova are out of luck.

The recently released "TorrentServer handler" extension fixes these issues and also introduces a couple of other neat features (e.g., right click and save to "Torrent Server" to download any file type through mlDonkey):

https://addons.mozilla.org/en-US/firefox/addon/14043

OTOH, it only works with mlDonkey so if you're using aMule or eMule, you're not in luck.