Yes, Firestone tires are generally covered by a warranty, but the specifics can vary based on the type of tire purchased. Firestone typically offers a limited warranty that covers defects in workmanship and materials for the life of the tire or until the tread wears down to a certain depth, usually indicated as 2/32 of an inch. Additionally, some Firestone tires may come with a mileage warranty, which guarantees a certain number of miles depending on the model. It is important to note that the warranty does not cover damage from road hazards, improper maintenance, or other types of misuse. For detailed warranty information specific to a particular tire model, it is advisable to visit the official Firestone website or consult the warranty booklet that comes with the tire at the time of purchase.