--- a/toolkit/mozapps/extensions/AddonManagerWebAPI.h
+++ b/toolkit/mozapps/extensions/AddonManagerWebAPI.h
@@ -10,17 +10,16 @@
 #include "nsPIDOMWindow.h"
 
 namespace mozilla {
 
 class AddonManagerWebAPI {
 public:
   static bool IsAPIEnabled(JSContext* cx, JSObject* obj);
 
-private:
   static bool IsValidSite(nsIURI* uri);
 };
 
 namespace dom {
 
 class AddonManagerPermissions {
 public:
   static bool IsHostPermitted(const GlobalObject&, const nsAString& host);