diff --git a/testing/user.js b/testing/user.js
index 70ba414..45ac2a1 100644
--- a/testing/user.js
+++ b/testing/user.js
@@ -175,7 +175,6 @@ user_pref("network.prefetch-next", false);
 // -------------------------------------
 // Disable DNS prefetching
 user_pref("network.dns.disablePrefetch", true);
-user_pref("network.dns.disablePrefetchFromHTTPS", true); // [HIDDEN PREF]
 // -------------------------------------
 // Disable predictor / prefetching
 user_pref("network.predictor.enabled", false);