How can I create a fade effect of a fade image using CSS 3 transition?

I am trying to create a fade out effect for an image. It works in Chrome, but it does not work in Firefox.

Here is the code: http://jsfiddle.net/FTLJA/254/

(I really worked with jQuery, but it made the browser slow and flickering on Android phones, so I'm trying to use CSS instead.)

Thanks for any help.

Update: fixed .. check the link again