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Privacy Settings and Ad Perception: The Shift from Third-Party Cookies to the Privacy Sandbox

  • Laboratoire d'Informatique (LIX)

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Online behavioral advertising, heavily reliant on privacy-invasive third-party cookie tracking, faces a significant shift as browsers like Safari, Brave, and Firefox have already deprecated them. Google Chrome announced its parallel move with the "Privacy Sandbox Initiative"in 2019, proposing privacy-preserving advertising mechanisms. The extent to which Privacy Sandbox can deliver comparable ad effectiveness to the established third-party cookies system will likely determine its adoption as a widespread alternative. This paper presents the first user study evaluating the impact of Privacy Sandbox APIs on ad perception. Our findings show that users perceive Privacy Sandbox ads as less relevant and exhibit lower purchase intent compared to third-party cookie-based ads, without a corresponding increase in perceived privacy protection. These results contribute to the ongoing assessment of Privacy Sandbox as an alternative to third-party cookies.

Original languageEnglish
Title of host publicationCHI 2026 - Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems
EditorsNuria Oliver, David A. Shamma, Heloisa Candello, Pablo Cesar, Pedro Lopes, Alessandro Bozzon, Thomas Kosch, Vera Liao, Xiaojuan Ma, Valentino Artizzu, Fiona Draxler, Gustavo Lopez, Anke V. Reinschluessel, Xin Tong, Phoebe O. Toups Dugas
PublisherAssociation for Computing Machinery
ISBN (Electronic)9798400722783
DOIs
Publication statusPublished - 13 Apr 2026
Event2026 CHI Conference on Human Factors in Computing Systems, CHI 2026 - Barcelona, Spain
Duration: 13 Apr 202617 Apr 2026

Publication series

NameConference on Human Factors in Computing Systems - Proceedings

Conference

Conference2026 CHI Conference on Human Factors in Computing Systems, CHI 2026
Country/TerritorySpain
CityBarcelona
Period13/04/2617/04/26

Keywords

  • Advertising
  • Privacy Sandbox
  • Third-party cookies
  • Tracking

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