No, it is generally not recommended to feed gray foxes.
Why Feeding Is Discouraged
Feeding foxes can make them habituated to humans, causing them to lose their natural fear and potentially become aggressive or nuisance animals. Foxes can carry diseases such as rabies and parasites that may spread to humans or pets. Feeding can also disrupt local ecosystems and draw foxes into residential areas, increasing safety risks.
Better Alternatives
Instead of feeding, create a wildlife-friendly habitat with native plants, secure garbage and pet food, and avoid leaving food outdoors. If you see a gray fox, observe from a safe distance, keep pets leashed, and contact local animal control or a wildlife rehabilitation center if you have concerns.