title: Monitor updates of application cache in Firefox
body: <p>I have a web app which uses application cache. I want to <em>show progress</em> of populating the cache after manifest is changed.</p>
  
  <p>Event handler <code>applicationCache.onprogress</code> is used to monitor the progress of file downloads.</p>
  
  <p>This <em>works</em> on Google Chrome and Safari: event <code>onprogress</code> is being generated per each file after the file is downloaded.
  However on Firefox all onprogress events are generated at the beginning - right after the main html page is loaded - <em>before</em> any file referenced from manifest is downloaded to the cache.</p>
  
  <p>That prevents me from displaying file downloads progress. What is the proper way to monitor downloading of files to application cache in Firefox?</p>
  
  <p>Version of Firefox: 24 on Linux Mint.
  Thanks for help.</p>
  
  <hr>
  
  <p><strong>SOLUTION:</strong> progress monitoring actually works in Firefox, I was using too small number of cached files.</p>