diff --git a/content/base/src/nsDocument.cpp b/content/base/src/nsDocument.cpp
index ea3e336c4dce..11971f24ff38 100644
--- a/content/base/src/nsDocument.cpp
+++ b/content/base/src/nsDocument.cpp
@@ -4351,7 +4351,18 @@ nsDocument::CreateElementNS(const nsAString& aNamespaceURI,
                             nsIDOMElement** aReturn)
 {
   *aReturn = nsnull;
+  nsCOMPtr<nsIContent> content;
+  nsresult rv = CreateElementNS(aNamespaceURI, aQualifiedName,
+                                getter_AddRefs(content));
+  NS_ENSURE_SUCCESS(rv, rv);
+  return CallQueryInterface(content, aReturn);
+}
 
+nsresult
+nsDocument::CreateElementNS(const nsAString& aNamespaceURI,
+                            const nsAString& aQualifiedName,
+                            nsIContent** aReturn)
+{
   nsCOMPtr<nsINodeInfo> nodeInfo;
   nsresult rv = nsContentUtils::GetNodeInfoFromQName(aNamespaceURI,
                                                      aQualifiedName,
@@ -4359,13 +4370,9 @@ nsDocument::CreateElementNS(const nsAString& aNamespaceURI,
                                                      getter_AddRefs(nodeInfo));
   NS_ENSURE_SUCCESS(rv, rv);
 
-  nsCOMPtr<nsIContent> content;
   PRInt32 ns = nodeInfo->NamespaceID();
-  rv = NS_NewElement(getter_AddRefs(content), ns, nodeInfo.forget(),
-                     NOT_FROM_PARSER);
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  return CallQueryInterface(content, aReturn);
+  return NS_NewElement(aReturn, nodeInfo->NamespaceID(),
+                       nodeInfo.forget(), NOT_FROM_PARSER);
 }
 
 NS_IMETHODIMP
diff --git a/content/base/src/nsDocument.h b/content/base/src/nsDocument.h
index 1b32b05f923f..b1ef72f46aee 100644
--- a/content/base/src/nsDocument.h
+++ b/content/base/src/nsDocument.h
@@ -859,6 +859,9 @@ public:
 
   nsresult CreateElement(const nsAString& aTagName,
                          nsIContent** aReturn);
+  nsresult CreateElementNS(const nsAString& aNamespaceURI,
+                           const nsAString& aQualifiedName,
+                           nsIContent** aReturn);
 
   nsresult CreateTextNode(const nsAString& aData, nsIContent** aReturn);
 
diff --git a/js/src/xpconnect/src/dom_quickstubs.qsconf b/js/src/xpconnect/src/dom_quickstubs.qsconf
index 7a7c0fd879c5..9764fc34a9cb 100644
--- a/js/src/xpconnect/src/dom_quickstubs.qsconf
+++ b/js/src/xpconnect/src/dom_quickstubs.qsconf
@@ -103,6 +103,7 @@ members = [
     'nsIDOMDocument.getElementById',
     'nsIDOMDocument.createDocumentFragment',
     'nsIDOMDocument.createElement',
+    'nsIDOMDocument.createElementNS',
     'nsIDOMDocument.importNode',
     'nsIDOMDocument.createTextNode',
     'nsIDOMElement.removeAttributeNS',
@@ -909,6 +910,11 @@ customMethodCalls = {
         'code': '    nsCOMPtr<nsIContent> result;\n'
                 '    rv = self->CreateElement(arg0, getter_AddRefs(result));'
     },
+    'nsIDOMDocument_CreateElementNS': {
+        'thisType': 'nsDocument',
+        'code': '    nsCOMPtr<nsIContent> result;\n'
+                '    rv = self->CreateElementNS(arg0, arg1, getter_AddRefs(result));'
+    },
     'nsIDOMDocument_CreateTextNode': {
         'thisType': 'nsDocument',
         'code': '    nsCOMPtr<nsIContent> result;\n'