SSL renegotiation enabled - Mozilla Firefox

When you try to access a site  that has SSL renegotiation enabled, you get the following error:

Renegotiation is not allowed on this SSL socket.
(Error code: ssl_error_renegotiation_not_allowed)

To enable SSL renegotiation you need to point your browser to about:config. After confirming that you know what you are doing, you need to search for:

security.ssl.allow_unrestricted_renego_everywhere__temporarily_available_pref

and set it to true. After this you should be able to access the site.