diff --git a/toolkit/content/nsWidgetStateManager.js b/toolkit/content/nsWidgetStateManager.js
index e08e05421b7b..51d8d2421b9f 100644
--- a/toolkit/content/nsWidgetStateManager.js
+++ b/toolkit/content/nsWidgetStateManager.js
@@ -114,8 +114,7 @@ nsWidgetStateManager.prototype =
 
     if ("GetFields" in gCurrentWindow) {
       // save page data based on user supplied function in content area
-      var dataObject = this.dataManager.getPageData(aPageTag);
-      dataObject = this.contentArea.GetFields(dataObject);
+      var dataObject = gCurrentWindow.GetFields();
       if (dataObject)
         this.dataManager.setPageData(aPageTag, dataObject);
     }