diff --git a/user.js b/user.js
index 5c6a3bb..d102b30 100644
--- a/user.js
+++ b/user.js
@@ -58,6 +58,7 @@ user_pref("privacy.history.custom", true);
 /** SPECULATIVE CONNECTIONS ***/
 user_pref("network.http.speculative-parallel-limit", 0);
 user_pref("network.dns.disablePrefetch", true);
+user_pref("network.dns.disablePrefetchFromHTTPS", true);
 user_pref("browser.urlbar.speculativeConnect.enabled", false);
 user_pref("browser.places.speculativeConnect.enabled", false);
 user_pref("network.prefetch-next", false);