Icon Missing from Toolbar Puntuado con 3 de 5 estrellas

I am repeatedly having the issue that the goo.gl icon disappears after closing firefox. It does not even appear in the customize toolbar as an option.

I have uninstalled and reinstalled it and the same thing.

Any one else having this issue?

Esta valoración es de una versión anterior del complemento (1.7.4).  Este usuario tiene 2 valoraciones anteriores de este complemento.