An autonomous fire-fighting agent (10) formed from a material with fire-extinguishing properties. The material includes: microcapsules with a fire-extinguishing composition, the microcapsules having sizes of from 2 to 100 μm and being in the form of a halocarbon enclosed in a polymeric shell consisting of polyurea and/or polyurethane; and a binder. The binder includes a composite material having a polymeric component and mineral fibers and/or particles. The invention also relates to a method for manufacturing an autonomous fire-fighting agent (10) and an object which uses the autonomous fire-fighting agent (10) to fight a fire 10-20 s after ignition.