Although Firefox is well-regarded by privacy-conscious users, some of its default settings can expose you to privacy risks.

wtf, you can run 16 bit apps in 64-bit mode, Windows simply removed support for it. Try using an operating system that isn't stuck in hell. Also why no support for Linux compositing? IT'S CALLED ...

True, but you also forgot to mention that CPU's also support backwards compatibility. Even on my 4 core Qx6700, I can still execute 16 bit code or work with 8 bit registers. That kind of compatibility ...