No mal, in general I don't think a fox would grab a cat - for reasons I said in #12.
Even most dogs who like to chase cats have second thoughts when they meet a cat that stands its ground!
I don't know about dogs and foxes otherego. I know that my dog and other dogs I know always chased a fox if they saw one and the fox always ran away.
If brought up together and the fox was domesticated anything is possible. All sorts of animals get on if they are brought up in a domestic situation.
But although unlikely, it seems that friendships between a dog and wild fox can happen. These two below met in the woods in Norway.
There are some amazing photos of these two in the link below.
