diff --git a/js/xpconnect/idl/xpccomponents.idl b/js/xpconnect/idl/xpccomponents.idl
index c9cdf0756940..29a82b9efe3f 100644
--- a/js/xpconnect/idl/xpccomponents.idl
+++ b/js/xpconnect/idl/xpccomponents.idl
@@ -727,6 +727,9 @@ interface nsIXPCComponents_Utils : nsISupports
     /* Create a commandline object. */
     nsISupports createCommandLine();
 
+    /* Create a command params object. */
+    nsICommandParams createCommandParams();
+
     /* Create a loadcontext object. */
     nsILoadContext createLoadContext();
 
diff --git a/js/xpconnect/src/XPCComponents.cpp b/js/xpconnect/src/XPCComponents.cpp
index 789437de14e4..391034a1576b 100644
--- a/js/xpconnect/src/XPCComponents.cpp
+++ b/js/xpconnect/src/XPCComponents.cpp
@@ -3233,6 +3233,15 @@ nsXPCComponents_Utils::CreateCommandLine(nsISupports** aCommandLine)
     return NS_OK;
 }
 
+NS_IMETHODIMP
+nsXPCComponents_Utils::CreateCommandParams(nsICommandParams** aCommandParams)
+{
+    NS_ENSURE_ARG_POINTER(aCommandParams);
+    nsCOMPtr<nsICommandParams> commandParams = new nsCommandParams();
+    commandParams.forget(aCommandParams);
+    return NS_OK;
+}
+
 NS_IMETHODIMP
 nsXPCComponents_Utils::CreateLoadContext(nsILoadContext** aLoadContext)
 {