title: alert() and console.log() not working in Firefox 26
body: <p>I feel like I'm going crazy but <code>alert()</code> and <code>console.log()</code> refuses to work <strong>anywhere</strong> on <strong>Firefox 26</strong>. </p>
  
  <p>At first I thought it was my own website's problem, but I cannot for the life of me to get it to work via <code>javascript:</code> urls, <code>Firebug</code>, I even tried it in <a href="http://jsfiddle.net" rel="noreferrer">jsfiddle.net</a> by just putting <code>alert('test');</code> in the script panel. </p>
  
  <p><em>Tried uninstalling and installing again, no luck</em>. </p>
  
  <p>The only extension I'm running is Firebug. </p>
  
  <p>Heck, <em>Stackoverflow didn't even prompt me about leaving when I accidentally clicked the back button while writing this</em>. </p>
  
  <p>Also yes, <strong>I made sure there was some content</strong> inside the <code>alert()</code> and <code>console.log()</code></p>
  
  <p>What I mean by not working is that Firefox treats the code as if it were non-existent, nothing happens.</p>
  
  <hr>
  
  <p>Once again, here's my environment:<br>
  <strong>Browser:</strong> Firefox 26.0 <br>
  <strong>OS:</strong> Windows 8.1 Pro <br>
  <strong>Issue:</strong> <code>alert()</code>, <code>console.log()</code>, and apparently <code>prompt()</code> doesn't work</p>
  
  <p>If anyone might know why this is happening, I would highly appreciate an answer.</p>
  
  <hr>
  
  <p><strong>UPDATE</strong></p>
  
  <p>Following Pointy's comment, it appears that both <code>alert()</code> and <code>console.log()</code> work as expected on the <strong>New Tab Page</strong>, but nowhere else</p>