How in Mozilla Firefox, when opening a private tab window, do it generate a new user profile?

Question

Mozilla Firefox

When working through Mozilla 61.0.1, I want to create a new pristine clean profile in the /tmp folder when opening a private window (aka incognito mode).
But I don’t know where and what to write in abaut::config
Can anyone tell me?

Answer 1

what are you trying to achieve with this?
maybe this solution will suit you:
1) Create a Firefox profile
2) Install containers in ittyts
3) Install Profile-sync- daemontyts
4) Reboot.
As a result, what we have:
1) Containers are the same tabs, but with insulation. When you restart Firefox, the containers are cleared.
2) The profile is spinning in RAM, the same / tmp in principle. When you restart the computer is reset to disk.
If this suits you, then I can describe in more detail what and how to do it.

Answer 2

I want to ensure that the private tab is like a new user, when you are a web master, it is not convenient to tet sites if you have something tied to cookies .... for example, from under several users at once ... You log in under one on the second authorization right away flies ....
Thanks for the answer!