title: how to prevent the change of input type password to text in debugger mode
body: <p>In any web page,We can see the password in this manner:</p>
  
  <ol>
  <li>Inspect the element using firebug.</li>
  <li>Go to textbox (where anyone can type the password) in firebug.</li>
  <li>Change the type of input box from password to text.</li>
  <li>Now you can see the password.</li>
  </ol>
  
  <p>How to prevent this?</p>