Rowan Merewood
Developer Relations for Privacy Sandbox.
Request additional migration time with the third-party cookie deprecation trial
Chrome plans to disable third-party cookies for 1% of users starting in early Q1 2024 with the eventual goal of ramping up to 100% starting in Q3 2024, subject to resolving any competition concerns with the UK’s Competition and Markets Authority (CMA). For an easier transition through the deprecation process we are offering a third-party deprecation trial which allows embedded sites and services to request additional time to migrate away from third-party cookie dependencies for non-advertising use cases.
Preparing for the end of third-party cookies
If your site uses third-party cookies it's time to take action as we approach their deprecation. Chrome plans to disable third-party cookies for 1% of users from Q1 2024 to facilitate testing and then ramp up to 100% of users from Q3 2024. In this Cookie Countdown series, we'll guide you through the timeline and immediate actions you can take to ensure your sites are prepared.
Shipping the Privacy Sandbox relevance and measurement APIs
Plans and timeline for gradually enabling the Privacy Sandbox relevance and measurement APIs in Chrome 115, ending the origin trial, and enrollment updates.
Preparing to ship the Privacy Sandbox relevance and measurement APIs
General availability for these APIs begins in late July with Chrome Stable 115.
Prepare for Chrome's user‑agent reduction
Starting in Chrome 110 (February 2023) we are gradually introducing a fixed value for Android version and device model—the default value will always be `Android 10` on a model `K`.
Feedback Report - 2022 Q3
Quarterly report for 2022 Q3 summarizing the ecosystem feedback received on Privacy Sandbox proposals and Chrome's response.
No spooky cookies
Cookies are best fresh, so what are the latest recipes to ensure you can still enjoy spooky season without any stale cookies?
Relevance and measurement unified origin trial
Run unified experiments across Attribution Reporting, Protected Audience API, Topics, Fenced Frames, and Shared Storage.
Expanding Privacy Sandbox testing
As the Privacy Sandbox timeline changes, learn about the expanding and extending the Privacy Sandbox Relevance and Measurement origin trial and how you can test and give feedback to shape the future of the APIs.
Feedback Report - 2022 Q2
Quarterly report for 2022 Q2 summarizing the ecosystem feedback received on Privacy Sandbox proposals and Chrome's response.
Progress in the Privacy Sandbox (May - June 2022)
Updates including including an expanded Privacy Sandbox Relevance and Measurement trial for Attribution Reporting, FLEDGE, Topics, fenced frames, and Shared Storage. We've published the 2022 Q1 feedback summary report along with hosting more developer Office Hours.
Progress in the Privacy Sandbox (March - April 2022)
Updates including including a number of APIs available for origin trial: CHIPS for partitioned cookies and Attribution Reporting, FLEDGE, and Topics as part of the combined Privacy Sandbox Relevance and Measurement trial.
Feedback Report - 2022 Q1
Quarterly report for 2022 Q1 summarizing the ecosystem feedback received on Privacy Sandbox proposals and Chrome's response.
Test the Privacy Sandbox ads relevance and measurement APIs
Learn about developer testing and the upcoming origin trial allowing for unified experimentation across the Privacy Sandbox relevance and measurement APIs: Topics, FLEDGE, and Attribution Reporting.
Progress in the Privacy Sandbox (January/February 2022)
Updates including Privacy Sandbox on Android, CHIPS origin trial, user-agent reduction, the new Topics proposal, and major updates for FLEDGE and Attribution Reporting.
Feedback
Where and how to provide feedback for Privacy Sandbox proposals throughout the development process.
Progress in the Privacy Sandbox (December 2021)
Looking back at stats from 2021 and some resolutions for tackling user-agent and cookies in 2022.
Progress in the Privacy Sandbox (November 2021)
Monthly summary of Privacy Sandbox news including a CDS recap and User-Agent testing guidance.
User-Agent reduction snippets
Test your sites and services against the reduced Chrome user-agent with regular expressions.
Progress in the Privacy Sandbox (October 2021)
Monthly summary of Privacy Sandbox news including the renamed Federated Credentials Management API and W3C TPAC sessions.
Progress in the Privacy Sandbox (September 2021)
Monthly summary of Privacy Sandbox news including Chrome's user-agent reduction and timeline updates.
Progress in the Privacy Sandbox (August 2021)
First in the series of monthly summaries for changes across the Privacy Sandbox proposals. Share your feedback on this first edition so we can improve as we go.
[OUTDATED] First-Party Sets and the SameParty attribute
![[OUTDATED] First-Party Sets and the SameParty attribute](https://wd.imgix.net/image/vgdbNJBYHma2o62ZqYmcnkq3j0o1/JL7L7S2qKI53pTWACfcv.jpg?auto=format)
First-Party Sets can allow related domain names that are owned and operated by the same entity to be treated as first-party in situations where first party and third party are otherwise treated differently.
