diff --git a/xpfe/AppCores/idl/EditorAppCore.idl b/xpfe/AppCores/idl/EditorAppCore.idl
index cabb8443fe3b..6dd2fca455ea 100755
--- a/xpfe/AppCores/idl/EditorAppCore.idl
+++ b/xpfe/AppCores/idl/EditorAppCore.idl
@@ -8,6 +8,7 @@ interface EditorAppCore : BaseAppCore
 
 	void EditorAppCore();
 	
+	void setEditorType(in wstring editorType);
 	void setAttribute(in wstring attr, in wstring value);
 	void undo();
 	void redo();
diff --git a/xpfe/AppCores/public/nsIDOMEditorAppCore.h b/xpfe/AppCores/public/nsIDOMEditorAppCore.h
index c90721dcee22..14f94c875d6a 100755
--- a/xpfe/AppCores/public/nsIDOMEditorAppCore.h
+++ b/xpfe/AppCores/public/nsIDOMEditorAppCore.h
@@ -39,6 +39,8 @@ public:
 
   NS_IMETHOD    GetContentsAsHTML(nsString& aContentsAsHTML)=0;
 
+  NS_IMETHOD    SetEditorType(const nsString& aEditorType)=0;
+
   NS_IMETHOD    SetAttribute(const nsString& aAttr, const nsString& aValue)=0;
 
   NS_IMETHOD    Undo()=0;
@@ -74,6 +76,7 @@ public:
 #define NS_DECL_IDOMEDITORAPPCORE   \
   NS_IMETHOD    GetContentsAsText(nsString& aContentsAsText);  \
   NS_IMETHOD    GetContentsAsHTML(nsString& aContentsAsHTML);  \
+  NS_IMETHOD    SetEditorType(const nsString& aEditorType);  \
   NS_IMETHOD    SetAttribute(const nsString& aAttr, const nsString& aValue);  \
   NS_IMETHOD    Undo();  \
   NS_IMETHOD    Redo();  \
@@ -95,6 +98,7 @@ public:
 #define NS_FORWARD_IDOMEDITORAPPCORE(_to)  \
   NS_IMETHOD    GetContentsAsText(nsString& aContentsAsText) { return _to##GetContentsAsText(aContentsAsText); } \
   NS_IMETHOD    GetContentsAsHTML(nsString& aContentsAsHTML) { return _to##GetContentsAsHTML(aContentsAsHTML); } \
+  NS_IMETHOD    SetEditorType(const nsString& aEditorType) { return _to##SetEditorType(aEditorType); }  \
   NS_IMETHOD    SetAttribute(const nsString& aAttr, const nsString& aValue) { return _to##SetAttribute(aAttr, aValue); }  \
   NS_IMETHOD    Undo() { return _to##Undo(); }  \
   NS_IMETHOD    Redo() { return _to##Redo(); }  \
diff --git a/xpfe/AppCores/src/nsJSEditorAppCore.cpp b/xpfe/AppCores/src/nsJSEditorAppCore.cpp
index fbfb407da9ba..b85fae7b9bea 100755
--- a/xpfe/AppCores/src/nsJSEditorAppCore.cpp
+++ b/xpfe/AppCores/src/nsJSEditorAppCore.cpp
@@ -158,6 +158,42 @@ ResolveEditorAppCore(JSContext *cx, JSObject *obj, jsval id)
 }
 
 
+//
+// Native method SetEditorType
+//
+PR_STATIC_CALLBACK(JSBool)
+EditorAppCoreSetEditorType(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
+{
+  nsIDOMEditorAppCore *nativeThis = (nsIDOMEditorAppCore*)JS_GetPrivate(cx, obj);
+  JSBool rBool = JS_FALSE;
+  nsAutoString b0;
+
+  *rval = JSVAL_NULL;
+
+  // If there's no private data, this must be the prototype, so ignore
+  if (nsnull == nativeThis) {
+    return JS_TRUE;
+  }
+
+  if (argc >= 1) {
+
+    nsJSUtils::nsConvertJSValToString(b0, cx, argv[0]);
+
+    if (NS_OK != nativeThis->SetEditorType(b0)) {
+      return JS_FALSE;
+    }
+
+    *rval = JSVAL_VOID;
+  }
+  else {
+    JS_ReportError(cx, "Function setEditorType requires 1 parameters");
+    return JS_FALSE;
+  }
+
+  return JS_TRUE;
+}
+
+
 //
 // Native method SetAttribute
 //
@@ -723,6 +759,7 @@ static JSPropertySpec EditorAppCoreProperties[] =
 //
 static JSFunctionSpec EditorAppCoreMethods[] = 
 {
+  {"setEditorType",          EditorAppCoreSetEditorType,     1},
   {"setAttribute",          EditorAppCoreSetAttribute,     2},
   {"undo",          EditorAppCoreUndo,     0},
   {"redo",          EditorAppCoreRedo,     0},