Just like thunder, fireworks can cause dogs to tremble, shake, hide, seek comfort, urinate or salivate. Destruction of furniture or other property is also a common sign of this fear.
That said, fireworks are among the most common fears in dogs. The loud, unpredictable noises, the burst of colors and sparks can be frightening. The sudden noise, coupled with the dog’s more sensitive and heightened hearing, is the reason why most dogs are not fans of fireworks.