> Are you saying that in Firefox you have to exit the entire browser to do the same thing?
If you look at the comment to which I was responding, the poster wanted his history and BOOKMARKS replaced when switching profiles. What you're talking about are containers, that do not replace your bookmarks (for example). For what you're talking about, there is no need to restart Firefox.
If what you want to do is have a completely different browser, with separate bookmarks and other settings, then you can start another instance, with a separate profile. It is very easy and takes a few seconds at most. And in fact, there is no need to shut down other profiles if you want more than one open at a time, so you can maintain all your current state when doing so.
If you look at the comment to which I was responding, the poster wanted his history and BOOKMARKS replaced when switching profiles. What you're talking about are containers, that do not replace your bookmarks (for example). For what you're talking about, there is no need to restart Firefox.
If what you want to do is have a completely different browser, with separate bookmarks and other settings, then you can start another instance, with a separate profile. It is very easy and takes a few seconds at most. And in fact, there is no need to shut down other profiles if you want more than one open at a time, so you can maintain all your current state when doing so.