Disclaimer: Facebook constantly changes its server-side APIs. An old APK may eventually lose access to certain features (like Stories or Marketplace). For the most stable long-term solution on Android 4.2.2, always prioritize Facebook Lite.
: Open your Downloads or a File Manager app, tap the downloaded .apk file, and select Install [5.1, 5.11]. Key Limitations Facebook Apk For Android 4.2.2