Simply display different themes based on the browser used for accessing your WordPress site.
Theme to Browser (T2B) Control helps you to use a different theme depending on the browser your site is viewed on. Install and activate it, you will be getting a new option for setting up themes as per browser in Dashboard’s Appearance menu. Here you can select a different theme for popular web browsers like Firefox, I.E. Opera, Safari including iPhone, blackberry and also Playstation. Following image makes its options more clear: