Are you signing in with AWS users or STS AssumeRole? My company does the latter: there’s a user management account and then each project gets their own account. To access a particular account, we have to use a user in the user-management account to assume a role in the account we want to access. This makes the AWS CLI tooling annoying and it also makes the AWS console annoying to access: you have to generate a sign-in link programmatically and use that link in the browser to sign in. However, if you’re already signed into an account, this pops up a page that says “you’re already signed in, please click here to log out before switching accounts”. Then you have to logout and regenerate the link before you can access the account you want.

My solution was an app with a minimal embedded webkit browser, so that I can programmatically clear the cookies every time I login to a new account: that way, the sign-in link works first try. Since then, it’s grown the ability to list Cloudformation stacks and their parameters and outputs.