Containers remember your login details, etc. And you can do one for each company, whereas you can only have one private session open. So I can seamlessly brows

Containers remember your login details, etc. And you can do one for each company, whereas you can only have one private session open. So I can seamlessly browse facebook, google, amazon, paypal, my bank, and so on and feel confident that my cookies and sessions aren't being leaked across websites. That they aren't tracking my behavior off the site via the browser. And I don't even consciously need to open a specific type of tab, I can set it so that it will always load that tab for that site. And the Facebook Container plugin, in particular, sets everything up for facebook automatically with regard to any domains owned by facebook.