All in all this is a very silly argument! Peter, if you have a good reason why Paul's tutorial is a bad thing, why not tell us. If you have laready told Paul, he clearly did not see it as a problem If it is wrong and will cause problems, we might then be able to make an informed decision, or perhaps Paul might be able to correct any errors.
I see nothing wrong with people working together, and I'm sure Paul's motives were trying to help Firefox users to get the software working. Developeers need to be prepared to work together is thebplatform is to survive.