Profiles are great. I've used them for years. Much better than containers, which separate your data sort-of-but-not-quite. A profile folder has everything . You can copy it, back it up, plug it into a completely new Firefox installation later. That portability is a killer feature, but scriptability needs to be improved. The manual says you can do: >`firefox --profile Start with profile at ` But that will not work as…
> A profile folder has everything. You can copy it, back it up, plug it into a completely new Firefox installation later. These new profiles seem to be slightly different from the old ones? [edit: ignore most of the stuff below, see replies] The new UI doesn't show your other regular profiles and when you create a new profile via the new UI, it also doesn't create a separate profile folder (it's part of your active p…
When you open about:profiles in both your "new" profiles, you can see that even though it has the same name, the path changes.
So I think in effect they still behave like profiles before, just with some extra logic on top so they have names, icons and so on.