Earlier quoted context omitted.
I knew of someone who had pet foxes.
Yeah, apparently they can be domesticated relatively easily, at least one generation at a time. My understanding is that the process has to be repeated with their offspring, so they aren't truly a domesticated animal (yet). At least some sources say they make good pets... but probably not for people who already have house rabbits, I imagine.
Foxes need a lot of space they are not a dog nor a cat. They can't cope and become over stressed to small places for one of the matters. Just as rabbit in cages.