--- /Users/esod/Downloads/drupalforfirebug/drupalforfirebug.module	2011-04-25 02:08:55.000000000 -0400
+++ drupalforfirebug.module	2011-12-19 16:33:31.000000000 -0500
@@ -270,7 +270,8 @@
   } else {
     if (!$code) {
       $output .= '<legend>' . t('Execute Firebug PHP') . '</legend>';
-      $output .= drupal_render(drupal_get_form('drupalforfirebug_execute_form'));
+      $dff_exec_form = drupal_get_form('drupalforfirebug_execute_form');
+      $output .= drupal_render($dff_exec_form);
       $output .= '</fieldset></body></html>';
       print $output;
       exit();