Are you looking to this for a specific legacy device, or are you more interested in the technical settings for proxy bypass?
At API 23, FacewebActivity (a WebView-based handler) might expose addJavascriptInterface with a privileged object. A malicious intent containing a crafted fb://faceweb/?url=... could lead to if the WebView’s file access is enabled.
The search for "Facebook Handler APK Android 23" is a symptom of the digital divide—users requiring legacy support or subsidized internet access. While these applications provide a functional solution for older hardware and data-saving needs, they represent a high-risk attack vector. The compromise of authentication credentials and personal data often outweighs the utility of the application.
A standard Facebook Handler APK differs from the official client in several key ways:
If the handler internally tries to: