And, if I remember correctly, the whole Profile things was initially hidden in Firefox. I remember you couldn't easily switch profile without using the command line.
Yes, it was there, but not really supported. We had to (ab)use the feature for some stuff, but everything was read-only and locked down by enterprise profiles, so it was not a big problem for us.
I think profiles are not supported as first class citizens, still.
Shall that be improved? Yes. Will that be easy? I don't think so.
