Bug 591523: Disable SSL false start by default.

r=sayrer a=blocking2.0:beta7

netwerk/base/public/security-prefs.js

@@ -8,7 +8,7 @@ pref("security.ssl.renego_unrestricted_hosts", "");
 pref("security.ssl.treat_unsafe_negotiation_as_broken", false);
 pref("security.ssl.require_safe_negotiation",  false);
 pref("security.ssl.warn_missing_rfc5746",  1);
-pref("security.ssl.enable_false_start", true);
+pref("security.ssl.enable_false_start", false);
 
 pref("security.ssl2.rc4_128", false);
 pref("security.ssl2.rc2_128", false);