The Extension for AWS SSO is a Chrome extension developed by yaggytter. It is a free tool that enhances the functionality of AWS Single Sign-On (AWS SSO), specifically for the AWS IAM Identity Center. The extension provides users with several useful features.

With this extension, users can easily identify the account name and permission set they are using for the current console at the AWS console's header. If the account name contains the word 'Production', the header color will turn red, providing a visual indicator. Additionally, the extension allows users to bring their favorite accounts to the top on the SSO login page, making it more convenient to access frequently used accounts.

The Extension for AWS SSO is a valuable add-on for users of AWS SSO, providing enhanced visibility and customization options. It is a useful tool for managing multiple AWS accounts and improving the overall user experience.