Please do not torrent over Tor.
Tor Browser will block browser plugins such as Flash, RealPlayer, Quicktime, and others: they can be manipulated into revealing your IP address.
We do not recommend installing additional add-ons or plugins into Tor Browser
Plugins or addons may bypass Tor or compromise your privacy. Tor Browser already comes with HTTPS Everywhere, NoScript, and other patches to protect your privacy and security.