Is there a Firefox equivalent for the scaling property of WebKit css?

I built a progress bar in CSS that looks good and better, but scales well in WebKit:

http://jsfiddle.net/YvFYk/

I am wondering if anyone knows a way to do the equivalent thing in Firefox:

• scales height, shadow / shadow position
• keeps the width of the same

-moz-transform: scale( .4 ) doesn't do what I'm looking for, as it reduces the width and keeps the container size the same.