Deregister Your Kindle for Web App
To troubleshoot a problem or access a different library, deregister an Amazon account from your Kindle for Web app.
- Open the Kindle for Web app in your favorite browser.
- Select the three dots menu, on the top-right corner of the app.
- Select Sign Out.
Alternatively, you can deregister your account on the Devices tab of Manage Your Content and Devices.