Jul 05, 2017 To back up your profile(s), copy the Default profile folder and any numbered Profile folders in the UserData folder on Windows, the Chrome folder on Mac OS X El Capitan, or the google-chrome folder in Linux to an external hard drive or a cloud service. On your Mac, do any of the following: Use Spotlight: Click the Spotlight icon in the menu bar, enter the file’s name in the Spotligh..