title: saving / mirroring / crawling web pages that use javascript to generate content
body: <p>I want to download web pages that use javascript to output the data. Wget can do everything else, but run javascript.  </p>
  
  <p>Even something like:firefox -remote "saveURL(www.mozilla.org, myfile.html)" </p>
  
  <p>would be great (unfortunately that kind of command does not exist).</p>