Rich snippets are Improved search engine results which offer more info to searchers on the contents of a web page. Google as well as other engines like google use structured knowledge, contained within the HTML of the webpage, to kind these snippets. Putting together the module, Superior Search engine optimization https://www.presta-addons-modules.com/en/free-modules/prestashop-popup-on-exit-page-on-browser-tab-close-event.html