title: Console.log does nothing in console on Firefox
body: <p>I found several threads about <code>console.log</code> not working on certain browsers couple years ago, I guess the issue should be solved today. Yet the following code doesn't display anything in Firebug's "console" tab (FF 43.04):</p>
  
  <pre><code>if (window.console) console.log( 'changed' );
  </code></pre>
  
  <p>Any idea why?</p>
  
  <p>EDIT: no output, no error. This code was added inside <code>.on( 'change', 'input:radio', function() { });</code> which fires when <code>$( 'input[value="whatever"]' ).change();</code> runs.</p>