To hunt down outdated Plug-ins in Firefox, Mozilla rolled out last year the Plug-in Check feature that checked for out-of-date plug-ins for Firefox. “Outdated plug-ins are a major source of security and stability risk for web users, and some studies have put the proportion of users with older versions as high as 80%”.
“We believe that plugin safety is an issue for the web as a whole, so while our initial efforts focused on building a page that would work for Firefox users, the team has since expanded plugin check coverage to work with Safari 4, Chrome 4, and Opera 10.5. We have added support for Internet Explorer 7 and 8 for the most popular plugins, as well, but since IE requires specific code to be written for each plugin it will take us a little longer to get to full coverage. You can see the updated page for yourself here” writes the Mozilla blog (Johnathan Nightingale, Mozilla’s Director of Firefox Development).
The Plug-in Check feature gently nags web users with modern web browser that have out-of-date versions of Oracle’s Java Virtual Machine, Adobe Flash and other multimedia plug-ins (VLC, Totem, etc) to update to newer versions.
I just tested the feature with the four browsers (Opera, Chrome, Chromium and Firefox) I often use on my Ubuntu box, Firefox results; Totem and Shockwave Flash are up-to-date whilst VLC Multimedia Plug-in and IcedTea NPR Web Browser (IcedTea6 1.8) that executes Java applets, are out of date.