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…
>>`firefox --profile Start with profile at `
>But that will not work as expected if you have more than one profile (which is the whole point).
What won't work? Is that specific to Windows? This just works fine on my Linux box.