title: A script on this page may be busy Error in VS2010 ASP.net WebForm
body: <p>I developed a website in VS 2010 , now I want to run it in VS2013, but for just some oages when I want to run it from VS using FireFox ,this Error is shown.
  My projects is ASP.net webForm.</p>
  
  <pre><code>  A script on this page may be busy, or it may have stopped responding. 
    You can stop the script now, open the script in the debugger, or let the script continue
  </code></pre>
  
  <p>the similar error is in Chrome, IE , ...</p>
  
  <p>whats the problem? I searched on net even this site, but couldn't Fix the Error.</p>