Friendly URLs are being set during the configuration website page of each product or service, category, or static articles web page. This development web page is just handy for many automatic webpages, and more often than not you won't have to worry about these.   You specify the main URL https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html