Devices running Android 6.0 are now nearly a decade old. The modern Facebook app has likely stopped supporting API 23 natively. When someone tells you to install a "Facebook Handler Apk Android 23," they are suggesting a legacy package designed for Marshmallow. This is dangerous (see security section below).
: A required component in the AndroidManifest.xml that allows the Facebook app to access content (like images) from your application for sharing.
: Issues frequently arise when merging libraries during the APK build process. For example, GitHub Issue #2345 discusses failures in the DexMergingTask involving com.facebook.react components. Facebook Handler Apk Android 23
: Go to Settings > Applications and check the box for "Unknown Sources" to allow installation of files from outside the Play Store.
A search for this exact phrase typically comes from one of the following scenarios: Devices running Android 6
app, integrating basic chat features directly into the main interface to save system resources. Safety and Installation Note
Recommended for Android 23 (6.0). The main Facebook app is now too heavy for Android 6.0 and may crash or lag. Facebook Lite is the best "handler" for older devices. This is dangerous (see security section below)
: Patched the app to maintain basic login functionality on devices like those running Android 2.3.6. Developer Components