The study of disorder, and in particular the phenomenon of Anderson localization, in interacting many-body systems is a challenging problem in condensed matter physics. By introducing disorder in holographic realizations of superconductivity we can get predictions from the gauge/gravity duality on how strongly coupled superconductors behave in the presence of impurities. It is interesting to see the effect disorder may have on the critical temperature of those systems, and, when studying thin superconducting films, to consider the formation of islands of superconductivity.