Question

Firefox’s new smooth scrolling feature causes the scroll callback to trigger at each step in the animation.

DEMO in FF and Chrome to see the difference

Is there any way to have it so that it

1. Only fires one event when the page has finished scrolling
2. Make the page scroll abruptly like it does in Chrome

Answer 1

Try this:

function throttle( fn, timeout ) {
    var tid = 0;
    return function() {
        clearTimeout( tid );
        var args = [].slice.call( arguments ),
            ctx = this;

        tid = setTimeout( function() {
            fn.apply( ctx, args );
        }, timeout );
    };
}

$(window).on("scroll", throttle( function() {
    $('div').eq(0).append('scroll happened');
}, 100));

It will only fire the scroll once no scroll has happened in 100 milliseconds.

http://jsfiddle.net/NLGHS/1/