You have had better stability with Arch? They're known as a bleeding edge distro for a reason, and frequently release updates that break previous installs. Not

You have had better stability with Arch? They're known as a bleeding edge distro for a reason, and frequently release updates that break previous installs. Not that this is bad - it's just how they roll. Also, Javascript is not Mozilla's language. It was originally invented at Netscape, and is a standardized language. Yes, Mozilla does great things with Javascript, but is no more Mozilla's language than it is Microsoft's.