// apply inline-box only for mozilla
if( jQuery.browser.mozilla ) {
    // do when DOM is ready
    $( function() {
        // search form, hide it, search labels to modify, filter classes nocmx and error
        $( 'form.cmxform' ).hide().find( 'p>label:not(.nocmx):not(.error)' ).each( function() {
            var $this = $(this);
            var labelContent = $this.html();
            var labelWidth = document.defaultView.getComputedStyle( this, '' ).getPropertyValue( 'width' );
            // create block element with width of label
            var labelSpan = $("<span>")
            .css("display", "block")
            .width(labelWidth)
            .html(labelContent);
            // change display to mozilla specific inline-box
            $this.css("display", "-moz-inline-box")
            // remove children
            .empty()
            // add span element
            .append(labelSpan);
        // show form again
        }).end().show();
    });
};