Facebook Container and Multi-Account Container

I installed the Facebook Container and then the Multi-account container. When I open a new tab I’m prompted to assign a container. So when I want to open Facebook, I assume I would choose “no container” because I already have the Facebook Container installed. Is this correct?

I think that’s accurate per the link below.

“Facebook Containers specifically isolates Facebook and works automatically.”

https://support.mozilla.org/en-US/kb/how-facebook-container-different-multi-account-con

Thanks – Ed