Comment 1 for bug 300420

Source is now required, so there shouldn't be much of a point to filtering whether or not it has source.

I don't think we have a way of filtering extension, nor would it accurate because archives are allowed, which can contain any/all of them.

If you cna come up with any other filtering options, there are plenty to choose from.

Is "license" a good filter or not? I can't really imagine the typical user using it.