title: Why got Firebug removed after updating Firefox to version 50?
body: <p>After updating Firefox to version 50.0 my Firebug opens the default developer tools. The original Firebug doesn't work anymore.</p>
  
  <p>I have always preferred Firebug as my default debugging tool. I want the original Firebug back in Firefox 50. How can I do that?</p>