Facebook and Twitter both are most using social networking sites millions of users login to their account on daily basis, if any threat is speared over them then it will affect large number of users so its good to use them securely.
We had already showed you how to use Gmail On HTTPS.Actually both sites, Facebook and Twitter provides HTTPS connection but not by default, actually HTTPS connection is a heavy connection and it takes times on loading that’s by this connection is optional for you.
All you have to do is just type HTTPS instead of HTTP in your address bar and you will be taken to secured page, see below snapshot :-
So it use secured connection and safeguard your account.