I get that people don't like ads, but is that really a privacy concern?
It compromises Mozilla's claims that they still put users' interests first. Furthermore, they insist that these promoted tiles is something that people want, whereby it absolutely bloody obvious that nobody, except for Mozilla, wants this junk. These tiles basically show that Mozilla can act against users' interests and in a blatantly disingenuous manner. This in turn makes you question the rest of their efforts that are branded as pro-user.
More info: https://support.mozilla.org/en-US/kb/about-tiles-new-tab?red...