M.basicfacebook.com Home.php [upd]

Understanding m.basicfacebook.com/home.php: Facebook’s Ultra-Lightweight Gateway

2) Purpose / expected behavior

Understanding m.basicfacebook.com/home.php: A Deep Dive into Facebook’s Ultra-Lightweight Gateway

explains, if you replace "www" with "mbasic" in a video URL, you can often right-click the video player and "Save Video As" directly to your device—a feature that the main site deliberately makes difficult. 5. Regaining Control of Your Privacy YouTube experts