title: Get add-on id of extensions in Firefox
body: <p>I want to open extensions in browser tab as a normal html page so that I can automate it using selenium WebDriver. In firefox this can be done using link like this - <code>moz-extension://f1b30486-cd88-4319-bbb5-d5e387103414/popup.html</code>. </p>
  
  <p><a href="https://i.stack.imgur.com/ULnru.png" rel="noreferrer"><img src="https://i.stack.imgur.com/ULnru.png" alt="enter image description here"></a></p>
  
  <blockquote>
    <p>But the problem is that I am not finding a way in Firefox by which I can locate the id for all extensions**. The id used above is obtained when the extension is installed and a page with url <code>moz-extension://f1b30486-cd88-4319-bbb5-d5e387103414/congratulations.html</code> is loaded like a welcome page.</p>
  </blockquote>
  
  <p><strong>Is there any way in Firefox to get the add-on id or get urls like above for all extensions.</strong></p>