Modern versions of the Facebook app no longer support Android 4.1.1. According to official support, the current app generally requires Android 6.0 or greater The "Katana" Issue:
Facebook uses similar "internal-style" names for its other primary apps: : The main Facebook app. com.facebook.orca : The Facebook Messenger app. facebook katana apk android 411
: The first program manager originally wanted to call it "Cortana" (after the Halo character), which was also the name of an internal task management tool at Facebook. Modern versions of the Facebook app no longer
: com.facebook.katana is the unique system identifier for the main Facebook app on Android. facebook katana apk android 411