Browser Tuneup not available when viewing site offline

Browser Tuneup allows website visitors to test whether they have the browser plug-ins they need to view content at the site and, when they do not, to download the plug-ins from the web.
 
Because you are viewing the offline version of this website, features of the site that require you to connect to a web server have been disabled.
 
Return to the previous page using your browser's Back capability or, if this message displayed in a popup browser window, close the popup window.