title: How to include Jquery in the background script (not the content script) for my Firefox Jetpack Addon?
body: <p>I'm working on porting a Chrome extension over to Firefox. In the Chrome extension, the background script includes JQuery, which is used for AJAX throughout the background scripts.</p>
  
  <p>With the Firefox Jetpack SDK, it looks like i can do:</p>
  
  <pre><code>require("modulename")
  </code></pre>
  
  <p>but this only works if modulename is a firefox extension module, including the code:</p>
  
  <pre><code>exports.someVar = someLocalVar
  </code></pre>
  
  <p>in order to make the module functionality available elsewhere. Obviously JQuery isn't set up as a module like this, so there's no way to require it.</p>
  
  <p>Is there some way to include JQuery in my lib/main.js file in the background of my Firefox addon, such that I get access to JQuery in my main() function?</p>