Are you trying to access the Silk Road chat? Click the onion icon -> Settings -> Advanced, and uncheck "Configure ControlPort automatically", then restart the browser bundle. That will force the SocksPort to be 9050, otherwise a random one is selected. In mIRC, create a new entry for an IRC network. Call it "Silk Road" I guess. Enter this as the server: silcroadg3c3mtu6.onion Enter this as the port: 6667 Select SOCKS5 proxy Enter this as the proxy address: 127.0.0.1 If you are using the standalone Tor client Enter this as the proxy port: 9050 If you are using the browser bundle Enter this as the proxy port: 9150 Fill out the info for username and all that. Connect. Edit: Changed info about SocksPort