Is this a question? If yes, did you try?

For clarity:

Your use of the word "window" here is very confusing.

• One Firefox instance can easily have multiple connected windows (ctrl-n).
• As shown one Firefox installation can run different unconnected profiles.
• And finally you can run different Firefox installations at once.

Visually similar, but a big difference in automation!

Asking fuzzy questions can deter ppl from replying.