title: selenium-server-standalone-2.20.0.jar -userExtensions command line argument throwing error
body: <p>I was trying to execute selenium ide test suite with the following commandline.</p>
  
  <p>java -jar selenium-server-standalone-2.20.0.jar -userExtensions: "C:\Selenium\user-extensions.js" -htmlSuite "*iexplore" "http://google.com" "C:\Selenium\3" "C:\Selenium\results1.html"</p>
  
  <p>I observed that, without -userExtensions argument above command executes perfectly fine but when i added -userExtensions argument it threw following error,</p>
  
  <p>11:13:39.734 WARN - Embedded iexplore seems to have ended on its own (did we kil
  l the real browser???)
  Tests failed, see result file for details: C:\Selenium\results1.html</p>
  
  <p>On the other hand if I change the browser to firefox then script stuck at following</p>
  
  <p>11:20:52.296 INFO - Checking Resource aliases.</p>
  
  <p>What is possibly going wrong with the -userExtensions argument.</p>
  
  <p>Help on this would be highly appreciated.</p>