title: Xvfb on Windows
body: <p>I'm using pyvirtualdisplay to run a test with a headless Firefox browser. This is the code I'm using :</p>
  
  <pre><code>from selenium import webdriver
  from selenium.webdriver.support.ui import WebDriverWait
  from pyvirtualdisplay import Display
  
  display= Display(visible=0, size=(320, 240)).start()  # visible=0
  display.start()
  driver = webdriver.Firefox()
  driver.get("https://google.com")
  
  display.quit()
  </code></pre>
  
  <p>And the traceback that I obtain :</p>
  
  <pre><code>easyprocess.EasyProcessCheckInstalledError: cmd=['Xvfb','-help']
  </code></pre>