I keep waiting for better profile management. Not saying it needs to mirror chrome exactly, but feature wise it falls short (at least how I would like to use it).
They are completely isolates browser settings. Account, session, settings, hardening, history, everything.
To a certain extent you can do that with multi-account containers.
For instance, I can have Amazon always open in my “Shopping” tab to keep it separate from my “Social Networks” tab.