Thought it broke logins with the most recent upgrade to AWS access portal IAM identity center (I think version two, but it is difficult to say).

However, the problem was that with the upgrade a request was made to handle a new certificate, which was hidden.

Explicitly opening into a container allowed for setup of the certificate, and now it works.

I absolutely love this add-on however I have noticed a slow response on my browser when using AWS. It could however be my browser. To the developer, I wish this add-on would become available to MS Edge. It really deserves to be shared on other browsers