The git diff shows Firefox removing their FAQ answer about not selling personal data. Nothing says "we value privacy" quite like deleting the promise not to sell it! Clearly Firefox decided the best way to compete with Chrome was to speedrun the "Either die a hero or live long enough to become the villain" challenge. That deletion is worth a thousand privacy policies.
For those wondering, this is from Firefox's structured-data-firefox-faq.html file where they've removed the entire Q&A about not selling user data. The irony is palpable - they kept the "Why is Firefox so slow?" question though. At least they've got their priorities straight!