Step 2 - Conditionally Add New Widget Area Before Footer Widgets In Genesis https://wpsites.net/web-design/add-new-widget-area-before-footer-widgets-in-genesis/#step-2

functions.php

genesis_register_sidebar( array(
	'id'          => 'before-footer',
	'name'        => __( 'Before Footer' ),
) );

add_action( 'genesis_before_footer', 'before_footer_widget_area', 5 );
function before_footer_widget_area() {

if ( ! is_front_page() )   
    return;
 
	genesis_widget_area( 'before-footer', array(
		'before' => '<div class="before-footer"><div class="wrap">',
		'after'  => '</div></div>',
	) );
 
}