  We discuss the problem of the electron mass in the framework of Deformed
Special Relativity (DSR), a generalization of Special Relativity based on a
deformed Minkowski space (i.e. a four-dimensional space-time with metric
coefficients depending on the energy). We show that, by such a formalism, it is
possible to derive the value of the electron mass from the space-time geometry
via the experimental knowledge of the parameter of local Lorentz invariance
breakdown, and of the Minkowskian threshold energy $E_{0,em}$ for the
electromagnetic interaction. We put forward the suggestion that mass generation
can be related, in DSR, to the possible dependence of mass on the metric
background (relativity of mass).
