Veja as instruções do Facebook
1. * Go to "Accounts" and select "Manage Accounts." 2. * On the Basic tab, enter the following info: * Protocol: XMPP * Username: username * Domain: chat.facebook.com * Resource: Pidgin * Password: * Local alias: Alias 3. * Click the Advanced tab, then enter the following info: * Connect port: 5222 * Connect server: chat.facebook.com * (Uncheck the box labeled "Require SSL/TLS")