title: Firefox DevTools: Automatically injecting jQuery
body: <p>I'm doing quite a bit of work in the developer tools, and like to use jQuery in the console to run code snippets. To inject jQuery into the page (and the console), I'm pasting this into the devtools console:</p>
  
  <pre><code>var j = document.createElement('script'); j.src = "//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"; document.getElementsByTagName('head')[0].appendChild(j);
  </code></pre>
  
  <p>Is there a way to inject jQuery automatically into the developer tools console? Ideally, without affecting <code>window.$</code> or <code>window.jQuery</code> for the current page.</p>