  Recently, black hole symmetries have been studied widely and it has been
speculated that this procedure will lead to the deeper understanding of the
black hole physics. Spontaneous symmetry breaking of the horizon symmetries is
one of the very recent attempt to clarify black hole thermal physics. In this
work, we are going to investigate the same in three dimensional massive
gravity, including higher order of Riemann tensor. We observe that the idea
also works well in this gravitational theory, thereby providing stronger demand
of the viability of this idea.
