diff --git a/4chan_x.user.js b/4chan_x.user.js
index b29845e22..59b532b17 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -482,6 +482,9 @@
       return _results;
     };
   }
+  if (!d.head) {
+    d.head = $('head', d);
+  }
   $$ = function(selector, root) {
     if (root == null) {
       root = d.body;
diff --git a/script.coffee b/script.coffee
index a7c2ceeb0..99d6801c3 100644
--- a/script.coffee
+++ b/script.coffee
@@ -334,6 +334,9 @@ if not Object.keys
   Object.keys = (o) ->
     key for key in o
 
+# upgrade your firefox god damn it!
+if not d.head then d.head = $('head', d)
+
 $$ = (selector, root=d.body) ->
   Array::slice.call root.querySelectorAll selector