The administration can decide to permit or disable currency and language auto-improve functions. Also, alter the default retail outlet currency and language from the module management page. In my code instance, only when printing a doc should really all text be established in black towards a white (the paper) background. https://www.presta-addons-modules.com/en/free-modules/prestashop-popup-on-exit-page-on-browser-tab-close-event.html