title: Firefox 4 Required input form RED border/outline
body: <p>I have recently developed an HTML5 jQuery plugin and I'm having trouble removing the red border on required fields in FF4 beta.</p>
  
  <p>I noticed that FF applies this border/outline in required fields and removes it when value is set. The problem is that I am using the value attribute to emulate the placeholder attr in older browsers. Therefore I need all inputs with this feature to not show the red line.</p>
  
  <p>You can see the problem in the demo page of the <a href="http://www.matiasmancini.com.ar/demo_html5form_en.php" rel="noreferrer">plugin here</a> </p>