Safeguards Privacy - "Firefox is made under the principle that security and privacy are fundamental and must not be treated as optional."
Mozilla is certainly treating the cookie management dialog box, which has been broken for years, as optional. Same with accepting Mike Perry's patches and various other examples.
If Mozilla could actually do better in terms of privacy and security features than a handful of Tor Browser Bundle devs, they wouldn't need efforts like this and their work would speak for itself. I still use Mozilla code every day and am grateful for their work, but this sort of rhetoric is unimpressive.