Use Face ID or Touch ID on Firefox Focus for iOS
Add an extra layer of privacy by setting up Face ID (iPhone X) or Touch ID on Firefox Focus. If you leave a website loaded on Firefox Focus when you switch apps, anyone who tries to view Firefox Focus will have to verify through Face ID or Touch ID.
Tap the cogwheel to go to the Settings menu:
- Scroll down to the Security section and turn the switch on next to Use Face ID (or Touch ID) to unlock app.