diff --git a/netwerk/base/public/security-prefs.js b/netwerk/base/public/security-prefs.js
index 67ec559a..131e8b4b 100644
--- a/netwerk/base/public/security-prefs.js
+++ b/netwerk/base/public/security-prefs.js
@@ -53,6 +53,9 @@ pref("security.ssl3.dhe_dss_des_sha", false);
 pref("security.ssl3.rsa_null_sha", false);
 pref("security.ssl3.rsa_null_md5", false);
 
+pref("security.ssl3.ecdhe_ecdsa_aes_128_gcm_sha256", true);
+pref("security.ssl3.ecdhe_rsa_aes_128_gcm_sha256", true);
+
 pref("security.default_personal_cert",   "Ask Every Time");
 pref("security.remember_cert_checkbox_default_setting", true);
 pref("security.ask_for_password",        0);