I am a former developer that codes in my spare time for fun and to maintain some level knowledge in the subject. So I found an interesting proof of concept online. I saw the potential to modify it and to make it something useful for a certain industry. So I modified, tweaked, and added to the code, making it a Firefox extension.
The proof of concept is covered by an MIT Open Source license.
So the code is 60-70% original. I added the rest and made it useful. I demo’d the extension to a small conference and I was immediately offered money to sell or license it. Pretty cool for a weekend project. It was something I wasn’t expecting.
So, first question. What’s the first step? Can I copyright my program if it is built off of an open source project? How and what kind of protections does it give? I don’t know the first thing about licensing.
Next, how do I control the distribution? A general amount was thrown around for the use of the extension (over 100k). So I don’t want it in Firefox’s App Store or whatever you call it. I also don’t want to just email the extension and then they email it on to the next guy or sell it themselves. Any advice? Anyone been in this situation before?