Firefighters play a critical role in public safety organizations, responding to emergencies, extinguishing fires, and rescuing individuals. Key responsibilities include conducting fire prevention inspections, handling hazardous materials, and performing CPR. Essential skills include physical fitness, teamwork, and problem-solving. Firefighters typically work in varied environments, often alongside police and emergency medical services. Advancement opportunities include promotions to captain or chief, specialized training in areas like arson investigation, and roles in fire prevention education.