taguapire, when you installed it did you open the other app- granparadiso web browser? it is nessary to open that on order to run Firefox. just to let you know, it may take 10 or so seconds for the application to launch the first time.

that other app is still possibly under development so untill there's a update, granparadiso web browser opens FireFox. To tell you the truth, i don't even know whi he decided to put two icons in there in the first place