Installation : Step one: Upload the module zip file from the back-office Module & Services menu tab. Module Manager space using the upload button. After effective installation module menu link will seem inside the left menu or the best menu from the back-office additional spot. Phase two: Install the module https://www.presta-addons-modules.com/es/free-modules/prestashop-popup-on-exit-page-on-browser-tab-close-event.html