It is still incredibly difficult to adopt a domestic fox in the United States. However, several have been adopted as pets in other countries. Here's a video of one man and his two pet foxes doing...not much. Acting quite a bit like dogs and cats, actually. Still, a really charming video to watch on this Friday afternoon.
For more on domesticated foxes: Man’s new best friend? A forgotten Russian experiment in fox domestication - by me at the Scientific American Guest Blog