My approval is irrelevant. People do it, and people pay for it, so it deserves all the same respect and rights as any other work. No one’s value comes from my opinion of what they do to pay the bills, and it is not my place to tell people what sex “should” be.
Yeah, and using those is pretty good, but they don’t really do anything you can’t do just by changing settings in Firefox, and if Firefox doesn’t have any users those die right along with it.