How to stop Firefox from disabling web app

Hello

This is a browser compatibility issue. Safari, chrome, and IE show the web app at http://www.fatlossboss.com/calculator/ , but Firefox doesn’t.

Instead, it creates a div tag: “<div class=”fluid-width-video-wrapper”, and then says, ‘you need a plugin’.

Apparently this is a jquery issue but by disabling it, my site won’t be responsive anymore.

Is there any way to prevent Firefox from creating this div tag such that firefox users can see the web app?

many thanks
R

[Closed as duplicate http://wordpress.org/support/topic/html5-qn-can-you-see-this-html5-app-or-does-it-fail-for-you?replies=2 ]