Workaround Firefox Blocking Weak DHE Cipher Suites

If you have Firefox version 39 or newer, then you may have run into the error message below: "SSL received a weak ephemeral Diffie-Hellman key in Server Key Exchange handshake message. (Error code: ssl_error_weak_server_ephemeral_dh_key) The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. [...]