I’ve just discovered a new Firefox add-on: Prism for Firefox.  This add-on allows you to turn any web page into an application on your computer.  While it may not seem like much at first glance, it allows you to save your current web page view as an application on your computer.  If you use something like Gmail or Google Maps, for example, you can make their main pages into applications.  What this means is that rather than have it run in a full browser window, the page runs in a “shell” window with nothing indicative of the contents being a browser.  (Or in Mozilla-speak, it’s a web page view without the “Chrome”: no menu, no toolbars, no URL or search bars, etc.)  It also saves cookies separately: you can set up multiple Gmail applications using Prism, and stay logged in to all of them as they run concurrently.  Applications can be installed on your start menu, desktop, and/or quick launch bar.  And FYI:  Google Chrome has this as a standard feature, and it works about the same.  I’ve found Prism to come in handy for many of the Google applications.  And I can see its usefulness for many non-computer-savvy users, giving one-click access to web-based e-mail, for example.  Very handy!