--- a/browser/fuel/public/fuelIApplication.idl
+++ b/browser/fuel/public/fuelIApplication.idl
@@ -266,17 +266,17 @@ interface fuelISessionStorage : nsISuppo
    */
   nsIVariant get(in AString aName, in nsIVariant aDefaultValue);
 }; 
 
 
 /**
  * Interface representing an extension
  */
-[scriptable, uuid(ea563b60-aa5a-11db-abbd-0800200c9a66)]
+[scriptable, uuid(10cee02c-f6e0-4d61-ab27-c16572b18c46)]
 interface fuelIExtension : nsISupports
 {
   /**
    * The id of the extension.
    */
   readonly attribute AString id;
 
   /**