Yes. The fox has a diet that consists of rodents, insects, worms, fruit, fish, birds, eggs, and all other kinds of small animals. It is clearly a predator.
A link to the Wikipedia article on the fox...
The Main Predators Are Bobcats, Lynx, Wolverines, Wolves, Owls, Eagles, Hawks, Cougars, Bears And Wildcats. Other Predators Can Be Raccoons, Badgers, Honey Badgers, Raccoon Dogs, (Tanuki) African...