Proceedings of the 7th ACM conference on Computer and communications security
Protecting browser state from web privacy attacks
Proceedings of the 15th international conference on World Wide Web
Generating a privacy footprint on the internet
Proceedings of the 6th ACM SIGCOMM conference on Internet measurement
Measuring privacy loss and the impact of privacy protection in web browsing
Proceedings of the 3rd symposium on Usable privacy and security
Privacy diffusion on the web: a longitudinal perspective
Proceedings of the 18th international conference on World wide web
PET'07 Proceedings of the 7th international conference on Privacy enhancing technologies
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Many requests that a Web browser makes are not made to the primary site a user is visiting. It is common for websites to instruct browsers to make additional requests to third-party sites for content, advertisements, as well as for purely user-tracking purposes. Current techniques for maintaining user privacy with respect to cross-site requests are limited and inadequate. We propose a client-side whitelist for controlling third-party website requests. We implement this as RequestPolicy, an extension for Mozilla browsers. We look at the usability of RequestPolicy as well its impact on the Web browsing experience. Our extension maintains a high level of usability while safeguarding user privacy against well-known threats in addition to new threats we draw attention to.