With xampp 1.8.2 under winXP it works fine (PHP: 5.4.31, MySQL: 5.5.39)
Under 10.6.8 MacOS with Xampp 5.5.24 (php: 5.5.24, Mysql: 5.6.24
there's a warning as long as I activate the plugin at the frontend.
Warning: array_values() expects parameter 1 to be array, null given in /Applications/XAMPP/xamppfiles/htdocs/wp-content/plugins/wp-quick-front-end-editor/plugin.class.php on line 120