Whitelist specific browsers

I want to whitelist specific browser versions and perhaps redirect visitors using all the rest.

Not sure how to add new browsers or versions to this plugin and the author is unreachable. http://wordpress.org/extend/plugins/browser-blocker. Can anyone clarify how I would add something like Firfefox Aurora to it's list? I've tried copying the way all other browsers were added but with no luck. I believe it is because it can't detect the difference when 'Firefox" is still part of the name even though it is a completely different version and project ( versions are supposed to be supported) . I have to know if this is wordpress itself that can't detect the difference between FF's projects. I've found an extensive detection library , http://chrisschuld.com/projects/browser-php-detecting-a-users-browser-from-php/

Would need to add redirection and a " do this for all else " type of code to this plugin. http://wordpress.org/extend/plugins/php-browser-detection/