title: Selenium proxy connection, why ip does not change?
body: <p>I want to connect to proxy servers with python and selenium but I think there is a mistake because every time I connect to a proxy and check my IP I see the same. However I don't get any error </p>
  
  <pre class="lang-py prettyprint-override"><code>profile.set_preference("network.proxy.type", 1)
  profile.set_preference("network.proxy.http", str(proxy['ip']))
  profile.set_preference("network.proxy.http_port", int(proxy['port']))
  profile.update_preferences()
  driver = webdriver.Firefox(firefox_profile = profile, options = options)
  </code></pre>
  
  <p>I am really looking forward to find a way to change my IP while surfing the web with selenium.</p>