Have you tried the Multi-Account Containers? It sounds like they might work even better for your use case.

https://addons.mozilla.org/en-US/firefox/addon/multi-account...

I do this, exactly for the mentioned case. It's even easier than switching profiles, and you can select the container on a per tab basis.

Containers with a vertical tab manager (like Sidebery) are chef's kiss, you can create separate tab panels for each container (and configure a container to open in a certain tab panel) so you get even more differentiation of context for each container.

Yeah, I used to have the same issue with AWS because they kept your account in your session. Having containers for these things is much better than multiple profiles.

But for other things, profiles are far superior.

As you mentioned this, there is now a Firefox add-on that automatically creates the containers from the AWS SSO landing page as you click into your various accounts. It removes the need to create them manually with the Multi Account Containers add-on.

https://addons.mozilla.org/en-GB/firefox/addon/aws-sso-conta...

That's cool, although different to what I was referring to. I could totally have used this in a previous role.