From:  Benjamin Francis <bfrancis@mozilla.com>
Date:  04 Apr 2017 21:42:07 Hong Kong Time
Newsgroup:  news.mozilla.org/mozilla.dev.fxos
Subject:  

Re: Astian OS, Alternative to B2G OS

NNTP-Posting-Host:  63.245.214.181

On 4 April 2017 at 08:49, Chris Mills <cmills@mozilla.com> wrote:

FYI, the B2G OS docs are all archived here:

https://developer.mozilla.org/en-US/docs/Archive/B2G_OS

A lot of work went into this documentation, and we wouldn’t just delete it ;-)

MDN maybe, but http://mozilla.com/firefoxos has already been taken down, including the list of Firefox OS products and their specifications. It now redirects to support.mozilla.org.

Not sure why this was removed whereas older sites like Mozilla Labs and Identity are still archived.