The stable channel of Google Chrome has recently got an update, which brings new Profile Management system. This is similar to the earlier reported feature except the profile lock setting. The newer profile management system offers a new avatar menu right before the minimize button on the top right corner. Users can use this pop down menu to switch to other user profiles and launch incognito windows. I can’t see the profile lock option, and believe that it would be added in the future releases.
If you share your computer with your family members or other users, this feature would help you to keep your browsing data separate. A Chrome user profile is essentially a set of browsing data like browsing history, bookmarks, saved passwords, cookies, autofills etc. Having separate profiles for separate users would help them to work easily on the same Chrome installation without interfering with others.
Another interesting use case of having multiple Chrome user profiles would be creating different profiles for different purposes. For example, you can create a user profile for your work and install tons of useful and related extensions and apps, and create another separate profile for casual browsing with few essential extensions only.
But if you can’t find the new profile management system useful in anyway, you can easily disable it and go back to the older settings. To disable the new profile management system and avatar menu, open the Chrome flags page (chrome://flags), search for the option “Enable New Profile Management System”, disable it and restart your browser.
Alternatively, you could enter
chrome://flags/#enable-new-profile-management in address bar and reach the required settings directly.