title: Javascript regex (negative) lookbehind not working in firefox
body: <p>I need to modify the following javascript regex because the <strong>negative lookbehind</strong> in it throws an error in firefox:</p>
  
  <pre><code>content = content.replace(/(?![^&lt;]*&gt;)(?:[\"])([^"]*?)(?&lt;!=)(?:[\"])(?!&gt;)/g, '„$1“');
  </code></pre>
  
  <p>Does anyone have an idea and can help me out?</p>