title: How do you configure firefox to open an application without prompting the user?
body: <p>I've got a serverside app that send down a custom mime-type file "application/x-optibase".</p>
  
  <p>Firefox prompt user user to save or open the file and if the user clicks open the correct application launches so I believe I have mimeType.rdf configured correctly</p>
  
  <p>I've gone into about:config and set</p>
  
  <p>browser.helperApps.neverAsk.openFile to application/x-optibase</p>
  
  <p>and</p>
  
  <p>browser.helpApps.alwaysAsk.force to false</p>
  
  <p>According to the minimal documentation out there this should enable the application to automatically open when the user downloads the file but it doesn't seem to work.</p>
  
  <p>Any ideas?</p>
  
  <p>Thanks.</p>