Mobile foam generator-fire extinguisher for extinguishing large-scale fires that cannot be dealt with by common foam mobile fire extinguishers. It includes a container with concentrated foam, a foam suction hose, a mixer, two 15 bar certified canvas hoses according to EN 14540 (20m tied with storz couplings), a foam-water discharge hose, and 3 2" round trip couplings. Different types of hoses and couplings can be used upon request. The device requires connection to a water supply for operation.