And I agree that they shouldn't get involved in trying to battle "fake news" (which is itself a rather bogus concept based upon an immature understanding of the nature of news production) and instead just concentrate upon making a good browser which doesn't eat all the RAM on your system and doesn't exfiltrate a lot of user data to $SOMECOMPANY by default.
@yukiame It's open source, so the kinds of user monitoring antifeatures described can be removed. I expect they are in the Tor browser.
The background is that Mozilla used to gain income from the default search being Google or Yahoo. My guess is that no longer applies and so the tracking stuff might be alternative revenue.
@yukiame According to their last financial statement (2015):
"Mozilla receives royalty income from contracts with various search engine and information providers. Revenue from these contracts is determined by the search and information providers based upon end user activity or as contractually agreed to. "