I use Firefox as my daily driver but I really miss user profiles and tab groups from Chrome. None of the tab related extensions for Firefox give quite the same ease of use as the built in tab groups do in Chrome.
As noted by others in this thread, you want the -ProfileManager flag when you start it. You should be able to either have it remember you always want the profile manager on startup, or change the application shortcut to always use the flag.
It would be great if they made this more easily available though. It was the default once upon a time.
It would be great if they made this more easily available though. It was the default once upon a time.