&gt; We believe that the advertising ecosystem needs to do better – we believe that our work in our advertising experiments has shown that it can be done better.<p>It&#x27;s a shame that a lot of people I&#x27;ve talked to aren&#x27;t aware of the significance of how Mozilla designed the sponsored tiles.<p>Google and Facebook harvest mine all of your personal data in order to surface ads that are tailored to you. Mozilla, on the other hand, sent no data back to the server - <i>all</i> the decision-making was done client-side, which meant that Mozilla didn&#x27;t have to collect any information about the user.<p>I&#x27;m not a fan of the advertising model in general for other reasons, but I wish more advertisers accomplished their goal without violating users&#x27; privacy and hoarding their data.