title: Chrome extension that extracts automatically some data and displays them to the user
body: <p>What i want to do is to create an extension for chrome that  </p>
  
  <ol>
  <li>will be active only when the user browse specific pages.  </li>
  <li>the main task will be when the coursor is hovering over a link, a number will appear next to the cursor.</li>
  <li>that number will be extracted from the page's source code of the link  </li>
  </ol>
  
  <p>any suggestions on how i could do that? thanks in advance!</p>