What does not work?

It’s not showing the “blue” or locked when Facebook tab is open

You've ensured the extension is enabled? Can you post a screenshot?

Yes Facebook container is enabled and I also downloaded Firefox multi account container which is enabled as well and still not working either

Please post a screenshot of your about:addons and please also post your about:support data. Are you using any userChrome.css customization?

Are you using Private Browsing mode ?

I can't get Facebook Container to work and I can't even find a way to Post a Thread to attempt at fixing my problem?