diff --git a/user.js b/user.js
index 4c1aeac..86aafbe 100644
--- a/user.js
+++ b/user.js
@@ -1266,6 +1266,9 @@ user_pref("network.jar.open-unsafe-types", false);
  * [1] https://bugzilla.mozilla.org/show_bug.cgi?id=232227
  * [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1330876 ***/
 user_pref("ui.use_standins_for_native_colors", true); // (hidden pref)
+/* 2610: remove special permissions for certain mozilla domains (FF35+)
+ * [1] resource://app/defaults/permissions ***/
+user_pref("permissions.manager.defaultsUrl", "");
 /* 2611: disable WebIDE to prevent remote debugging and extension downloads
  * [1] https://trac.torproject.org/projects/tor/ticket/16222 ***/
 user_pref("devtools.webide.autoinstallADBHelper", false);