  The contribution of thermal fluctuations to the widths of isoscalar giant
multipole resonances (GMR) in heated nuclei is studied. Starting from the
collisional kinetic equation, it is shown that an additional contribution to
the nuclear friction and the corresponding GMR widths arises due to the
nonlinear dissipativity effect. It is also shown that the magnitude of the
contributions of the thermal fluctuations to the nuclear friction coefficient
and the GMR widths do not exceed 20%.
