The prestashop addon helps you to apply search engine optimization of your respective online shop by including automatic hreflang, and canonical tags. - Helps to redirect the customer towards the right shop URL with the shipping approach as per the customer's country spot. The module might be installed and configured https://www.presta-addons-modules.com/en/free-modules/prestashop-popup-on-exit-page-on-browser-tab-close-event.html