Enabling only RSA and Elliptic Curve Diffie–Hellman key exchange (ECDHE)
How: go to about:config search "SSL3" Among what you see are the key exchange protocols double click on DH protocols and leave ECDHE and RSA intact. Result: -Forcing secure websites to use either RSA or ECDHE for key exchange (the most secure key exchange protocols) -Disabling Diffie-Hellman key exchange protocol (considered less secure than those mentioned above). PS: ECDHE is even more secure than RSA, so you might want to consider disabling RSA too.
Trac:
Username: VladimirTimoshkin60