Mousewheel horizontal scrolling

Question

Referencing to the following example:

http://css-tricks.com/snippets/jquery/horz-scroll-with-mouse-wheel/

It does work under Chrome, but does not under Firefox.

In Firefox you can scroll only using arrow keys but not mousewheel.

Somebody know why this happens?

Answer 1

This was posted as a solution in the comments of the site you referenced:

$(function() {
        $("html, body").mousewheel(function(event, delta) {
            this.scrollLeft -= (delta * 30);
            event.preventDefault();
        });
    });