The official Facebook app no longer supports (KitKat). The current minimum requirement for the standard Facebook app is Android 6.0 or greater . Users with older devices must rely on legacy APKs or alternative versions. Summary of Facebook for Android 4.4.2
If you encounter bugs while using a version that still works, you can report them directly to Facebook: Facebook For Android 4.4.2 Apk
The is a fantastic stopgap solution. If you have a nostalgic device, a car head-unit running Android, or a cheap tablet for your kitchen, this will get you browsing your feed, checking groups, and responding to messages. The official Facebook app no longer supports (KitKat)
Outdated security protocols. Fix: