Firefox 19

First of all thank you for this great Plugin!

I just detected an issue I think you should know about:

The current version 19 of Firefox is not detected. The function get_browser_name() returns Unknown Browser: - Version:. Also the php_browser_info() function does not return back anything in this case, which was quite unexpected und broke my site.

Maybe you could take a look into this.

Thanks,
Bogdan

http://wordpress.org/extend/plugins/php-browser-detection/