This paper examines glass's properties, its manufacturing process, types, and specific behavior under high temperatures, particularly in fire situations. Glass, an amorphous and generally non-combustible material, reacts to fire in complex ways, depending on its type. Fire-resistant glass types, such as tempered, wired, and laminated, are designed to withstand high temperatures for specific durations, useful in fire barriers. Fire-rated glass can endure high heat without immediate breaking, thus enhancing building safety. The paper also discusses theoretical and experimental studies exploring glass cracking and breaking patterns in fire, showing how varying heat flux and structural factors impact glass failure. It highlights thermal expansion, color shift, thermal stress, and devitrification as common responses of glass to heat, with double-glazed and laminated glass showing better fire resistance.