All the significant browsers use different rendering engines. I guess this is a big reason why there are plenty of cross-browser compatibility problems! The module can be set up and configured through the PrestaShop again-office, and it could be additional to be a block for the website's footer or header. https://www.presta-addons-modules.com/en/free-modules/prestashop-social-media-like-floating-sidebar-on-left-and-right-side-on-all-pages.html