Free The Foxes is a free JavaScript+HTML+CSS-based solution for displaying good-looking notifications to visitors with a incompatible browser.

It is essential to have your users operate a browser that supports an appropriate standard on how things are displayed and how things function. Free the Foxes is FREE and is roughly only 25K in size (including JS, CSS and images) and is almost completely customizable.

Free the Foxes is a script you add to the bottom (before the closing body tag) of your webpage.  When a user who visits your site is not using an appropriate browser, he then is displayed a popup that suggests downloading and operating another more appropriate browser.