Use or upgrade your device. The main Facebook app is no longer secure or functional on KitKat.
After downloading the APK, follow these steps to install it: facebook apk for android 444 high quality
Would you like step-by-step instructions for APKMirror’s verification process? Use or upgrade your device
Facebook v317.0.0.26.112 (lighter, slightly fewer features) facebook apk for android 444 high quality
If you want a functional app experience on Android 4.4.4, is your absolute best bet.
When downloading and installing APK files, be cautious and ensure you're using a trusted source to avoid malware and security risks.