: Modern security protocols (like TLS 1.2 or higher) used by Facebook may prevent older browsers from loading the site at all. If the page fails to load, the device's hardware and software are likely too outdated to establish a secure connection. For Modern Windows Users Download or update the Facebook app | Facebook Help Center
While the original .cab installation files may still exist in unofficial web archives, the app itself will not connect to Facebook's modern servers even if successfully installed. Recommended Alternative: Mobile Browser download facebook for windows mobile version 6.1