Clean forgotten by your preferences uninstalled Firefox extensions

I install a bunch of Firefox extensions to try to dig up stuff cool, and it looks like those ugly extension, even after they have been uninstalled, leaving here and there, small residual files, much like Tom Thumb, molesting his sandwich with rillettes to not finish the DASS.

So how to clean all this? It's simple and it's called EClean !

This Firefox extension's role is to clean all those preferences left by applications you are installing from the age of your first tooth!