I think it's more likely that you can see something other people can't. I have this page open on macOS on identical monitors side by side, one in Chrome, and on

I think it's more likely that you can see something other people can't. I have this page open on macOS on identical monitors side by side, one in Chrome, and one in FF, and I legitimately can't tell a difference between the two in terms of text rendering. If I was in a discussion with you and you were going on about how poorly Firefox rendered text, I would be skeptical, because I don't see it.