If the app refuses to install or run, the is your most stable fallback.
It has a very small file size, uses less RAM, and works well on 2G networks. facebook old version apk for android 4.4.2
On Android 4.4.2, this setting is not in the main settings menu. If the app refuses to install or run,
Despite being "Lite," you can still:
How to obtain an older Facebook APK (actionable steps) uses less RAM
Compatibility with Android 4.4 or lower | Pulsus - Help Center