title: Black Boxed in Mozilla firefox
body: <blockquote>
    <p>Error:This Source is black boxed: its break point disabled and
    stepping skips through it.</p>
  </blockquote>
  
  <p>how to avoid <strong>This source is blackboxed</strong>? I am using 3rd Party Plugins from JQGRID.</p>
  
  <p>Error showing in <code>jquery.jqgrid.min.js</code> file</p>