No. Herbivores eat only plants which is why they are called herbivores. A creature that eats plants AND meat is considered omnivorous (an omnivore).
A raccoon is an omnivore because it could eat fish and it could eat berries.
Most humans are not herbivores because most humans eat both meat and plants. That makes those people omnivores. People that do not eat meat are vegetarians, or herbivores. :)
Are animals that eat mostly grass and other plants
An omnivore. They tend to eat lots of salmon, as well as grasses and other plants.