diff --git a/netwerk/base/security-prefs.js b/netwerk/base/security-prefs.js
index af179e3f3..d48194281 100644
--- a/netwerk/base/security-prefs.js
+++ b/netwerk/base/security-prefs.js
@@ -53,7 +53,7 @@ pref("security.ssl3.rsa_aes_256_sha", true);
 // Weak / deprecated
 pref("security.ssl3.dhe_rsa_aes_256_sha", false);
 pref("security.ssl3.dhe_rsa_aes_128_sha", false);
-pref("security.ssl3.rsa_aes_128_gcm_sha256", false);
+pref("security.ssl3.rsa_aes_128_gcm_sha256", true);
 pref("security.ssl3.rsa_aes_128_sha256", false);
 pref("security.ssl3.rsa_des_ede3_sha", false);