What is the purpose of the "Remember me on this device" function?
If you select the "Remember me on this device" checkbox, your login information will be automatically entered the next time you go to the login page.
This feature only works with devices that support cookies
This settings only applies to the device that you use to enable the setting on. It does not apply to your account generally, so when you access it on another device or using your computer, your login will not be prefilled.
If you log out using the "Sign Out" link on the bottom of the screen, you will disable this feature and will have to re-enter your login information the next time you come to the login screen.