Phase one: Add the module zip file from the back-Office environment Module & Services menu tab. Module Manager location using the upload button. Following the thriving installation module menu, the backlink will look inside the left menu or top menu during the back-Business place. Stage six: Please look at the https://www.presta-addons-modules.com/en/free-modules/prestashop-popup-on-exit-page-on-browser-tab-close-event.html