Superlogout is a website you can use to instantly logout of all active online accounts from just a click.
Logging out of your account when you’re done using a computer other than your own is just good security. If you use multiple accounts and want to simplify the process, Super Logout can log you out of over 30 major services at once. Remove Windows Shortcut Arrow From Desktop
As soon as you visit the site below, it will automatically get to work logging you out of a few dozen major services including Amazon, Google, Netflix, Steam, Tumblr, and YouTube. Once you’re logged out, the site will display a green “OK” next to each service.
For some reasons the developer of Superlogout hasn’t included Facebook, but it’s a quick way to log out of many sites at once.