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-Only mode, NoScript, and other patches to protect your privacy and security.