CoverMe - Private texting, calling, vault
HTTPS Everywhere - Chrome extension that encrypts and secures your browser
Messenger Platform - Discovery, chat extensions, and richer experiences
Smart HTTPS - Automatically changes HTTP addresses to the secure HTTPS, and if loading encounters error, reverts...
Facebook Messenger Kids - Safer and More Fun Video Calls and Messaging
SSL Enforcer - SSL Enforcer - Force SSL/TLS encryption for any browser or app. Block all unsecure connections.