mozilla (character), mozilla firefox, os-tan, black legwear, 2girls, animal ears, bare shoulders, blonde hair, blue eyes, blue fire, breath, detached sleeves, dress, expressionless, fire, fox ears, fox tail, glasses, long hair, long sleeves, looking at viewer, multiple girls, o o, pantyhose, personification, rimless eyewear, simple background, sitting, tail, white background, wrist cuffs, yellow dress, yokozuwari