Look for "Facebook Messenger" or "Messenger Lite" and check the "Minimum Android" requirement in the file details. You need a version that lists Android 4.4 as the base.
Delete the file and download an older version specifically targeting API 19. "App Not Installed"
Older app versions do not support Meta's updated secure messaging layers, leaving your chats vulnerable to interception on public Wi-Fi networks. facebook messenger for android 4.4.2
The official Google Play Store no longer hosts version-compatible variants of the standard Facebook Messenger app for Android 4.4.2. Meta officially deprecated support for Android KitKat to prioritize modern encryption protocols and advanced user interface frameworks. Server-Side Limitations
Since you cannot use the Play Store, you will need to manually install the APK. Only download APKs from reputable sources. Look for "Facebook Messenger" or "Messenger Lite" and
If you go to the Google Play Store on a stock Android 4.4.2 device today, you will likely see: "Your device isn't compatible with this version."
If upgrading is not an option, the mbasic.facebook.com workaround is your most reliable, future-proof solution. "App Not Installed" Older app versions do not
: Lite or older versions of the app will lack modern features like "Secret Conversations," newer stickers, or advanced video filters. Device Performance
Android operating system versions that support the Messenger app: Version 5 (Lollipop) and above. Facebook Messenger (Android 4.4+) APKs - APKMirror