> That is nothing like "convenient profile switching".

It takes a few seconds on my machine, and has the same result as switching profiles. But I accept your situation may be different, and would be interested to know what you see as its deficiencies.

I've not Firefox for a while, and never used multiple profiles, but in Chrome, I just click my face at the top right, choose work profile from the dropdown and I get a work profile window alongside my personal profile window that I still keep open. Or I can right click a link from my personal profile and choose "open link as -> work". Incognito windows are like a special profile that gets deleted when you close the window.

Are you saying that in Firefox you have to exit the entire browser to do the same thing?

> 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.