On 1. yeah this is a serious problem. If webapps start failing to work well under FF all bets are off. I didn't think of it. Testing on another browser increases costs of development. But the alternative (being in the hands of a single company owning the internet) is pretty terrible. It's one company that has a single choke point on how you deliver your product. If for whatever reason your company and the monopolist have incentives that are conflicting... you know what's going to be the result.