When you have Incognito tabs open and you exit Chrome, the app will instantly lock those pages and you will require fingerprint authentication to get things working again.
Chrome Will Soon Let You Lock Your Incognito Tabs Using Fingerprint Scanner on Android
Launching the browser to return to those tabs will bring you to a grey screen with the Incognito logo in the center. There will also be text reading “Unlock Incognito” and tapping on it will open the system fingerprint unlocking page that will ask you to verify your fingerprint sensor. As expected, a PIN option will also be there on the bottom left. Other available options will let you return to regular tabs and the overflow feature remains in the usual place. Honestly, it is a useful feature, especially when you are handing your phone to someone and you do not want to pry around. You can, however, turn off the feature by going to Settings > Privacy and security > Lock Incognito tabs when you leave Chrome. It is also worth noting that the feature has not been widely rolled out just yet but if you are using Chrome on Android and you want to use the feature, you can enable this feature by following the flag below. The feature is already available in Google Drive, Search, Fi, Chrome, and Authenticator on iOS and is branded as “Privacy Screen,” needless to say, it definitely needs a wider implementation on Android as well.
