title: Bootstrap dropdown disappear with right-click on Firefox
body: <p>I have some kind of problem with twitter-bootstrap and firefox.
  I have a button and a dropdown menu with an input text. If I right click on the input ( for right-click + Paste for example), firefox closes the dropdown. And that quite boring.</p>
  
  <p>Is there any solution for prevent that behaviour ?</p>
  
  <p>Thanks !</p>