title: Open a "Help" page after Chrome extension is installed first time
body: <p>I am new to Chrome extension. I have a question about how to make the extension to open a "Help" page automatically after installation. Currently, I am able to check whether the extension is running the first time or not by saving a value into localStorage. But this checking is only carried out when using click the icon on the tool bar. Just wondering if there is a way that likes FF extension which uses the javascript in  to open a help page after the installation. Thanks.</p>
  
  <p>Edit:
  Thanks for the answer from davgothic. I have solved this problem.
  I have another question about the popup. My extension checks the url of current tab, 
  <PRE>
  if OK(url){
      //open a tab and do something
  }
  else{
      //display popup
  }
  </PRE>
  Is it possible to show the popup in this way?</p>