@Edent This happens a lot. The Facebook mobile website is ugly, buggy, feature-limited & has bad UI on purpose. Sites hide login buttons but the sign-up button is big & colorful because they want new users but don't want you to logout (same resson why logout buttons are sometimes hard to find). Unsubscribe or cancel billing options are often buried in sub-sub-menus or in support menus instead of billing. 'Add to list' is a tiny link but add to cart a huge button. A pet-peeve of mine. 🙃