[jskopek]

Correct me if I'm wrong, but aren't the two ideals (being able to charge for your work VS. being able to modify others' work) contradictory?

I have zero experience with Firefox extension development, but everything I _have_ seen about it points at it being very difficult to mirror in a closed source environment.

[viraptor]

These are not contradictory. People still buy services. Also, you don't have to charge users directly. Three simple examples:

- firefox - open, free, gets money from google

- openmoko - open mobile, you can even download their pcb design and CAD files, but they do sell the product

- specialised apps - company I work for releases some code as open-source, but that doesn't mean that our users have resources to provide the same service themselves, so we don't lose anything