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Google’s April 2025 reversal kept third-party cookies in Chrome and canceled a planned standalone prompt asking users whether to retain them. It did not end the wider Privacy Sandbox program. The announcement came shortly after a U.S. digital-advertising antitrust ruling, but the timing does not prove that the ruling caused Google’s decision. A later UK regulatory decision in October 2025 released commitments tied to Chrome’s Privacy Sandbox changes after the UK Competition and Markets Authority (CMA) concluded its concerns no longer arose under Google’s revised approach.
What Google changed—and what it did not
In April 2025, Google said Chrome would keep its existing approach to third-party cookies rather than proceed with the planned deprecation. It also dropped a proposed new standalone prompt that would have asked users to choose whether to retain those cookies. Users could continue managing cookie choices through Chrome’s existing Privacy and Security Settings. Contemporaneous reporting described Google as continuing work with developers, publishers and advertisers on the broader Privacy Sandbox roadmap and on other Chrome privacy and security features.
That is narrower than saying Google canceled Privacy Sandbox. The initiative comprises multiple browser and platform technologies intended to support advertising, measurement and related functions with less reliance on individually identifying cross-site tracking. The planned removal of third-party cookies was one part of that broader effort, not the whole program. The CMA’s case record treats Chrome’s Privacy Sandbox proposals as a set of changes with competition implications.
Why cookies became a privacy and competition issue
Privacy and advertising needs
Third-party cookies can let companies recognize a browser across different websites, supporting behavioral profiling and targeted ads. That cross-site tracking is a central privacy concern. Cookies also support commercial functions such as measuring ad performance, limiting how often someone sees an ad, detecting fraud and funding publishers through advertising.
#1 Best Overall
- Attention-grabbing design meets the latest evolution of the Google Pixel Camera on the new Google Pixel 11 Pro; Gemini Intelligence helps manage details so you can live in the moment[1]; and the phone is available in two sizes
- Unlocked Android phone gives you the flexibility to change carriers and choose your own data plan: Works with Google Fi, Verizon, T-Mobile, AT&T, and other major carriers[2]
- Stay informed without looking at your screen: When your phone is face down, Pixel HiLight gently alerts you with subtle glowing lights when your favorite contacts are calling or you’re talking with Gemini; exclusive to Google Pixel 11 Pro phones
- Magic Capture catches the moment as you live it: With just one tap, Pixel 11 Pro captures video and photos, and automatically edits, crops, and unblurs a curated collection, ready to share – and you get the memory of how it felt to be in the moment
- Two new cameras for more brilliant photos: A larger telephoto sensor captures 30% more light for clear, beautiful photos and videos, even in the dark[3]; Pixel’s longest zoom ever helps you capture details from impressive distances[4]
Removing cookies would not eliminate every form of tracking, and keeping them does not make tracking inevitable in every browser or setting. Companies can also use first-party data, login-based identity, fingerprinting, IP-related signals and other methods. Privacy Sandbox was intended to support some advertising and measurement functions while reducing reliance on cross-site identifiers; the existence of those tools does not mean all tracking disappears.
Why regulators examined competition
Chrome is a major browser, while Google also operates substantial advertising businesses. Regulators therefore examined whether changing browser access to tracking functionality could affect rival ad-tech firms differently from Google’s own services. The CMA’s concerns included unequal access to functionality, possible self-preferencing and the effect of moving capabilities into Chrome. Its case was about competitive effects as well as privacy.
Rank #2
- Google Pixel 10a is a durable, everyday phone with more[1]; snap brilliant photography on a simple, powerful camera, get 30+ hours out of a full charge[2], and do more with helpful AI like Gemini[3]
- Unlocked Android phone gives you the flexibility to change carriers and choose your own data plan; it works with Google Fi, Verizon, T-Mobile, AT&T, and other major carriers
- Pixel 10a is sleek and durable, with a super smooth finish, scratch-resistant Corning Gorilla Glass 7i display, and IP68 water and dust protection[4]
- The Actua display with 3,000-nit peak brightness shows up clear as day, even in direct sunlight[5]
- Plan, create, and get more done with help from Gemini, your built-in AI assistant[3]; have it screen spam calls while you focus[6]; chat with Gemini to brainstorm your meal plan[7], or bring your ideas to life with Nano Banana[8]
How the U.S. antitrust ruling fits
The April 2025 announcement followed by only a few days a U.S. court ruling against Google in litigation concerning alleged monopolization in open-web digital advertising markets. Google said it would appeal, according to contemporaneous coverage. The timing places the Chrome decision in a period of heightened competition scrutiny, but the available reporting does not establish that the ruling directly forced Google to change course. “Amid” the ruling is more accurate than “because of” it.
Key dates in the Chrome and CMA story
| Date | Development |
|---|---|
| 2019 | Google began Privacy Sandbox as an initiative focused on reducing reliance on third-party cookies and improving privacy in Chrome. |
| January 7, 2021 | The CMA opened its investigation into Google’s proposed Chrome changes. |
| February 11, 2022 | The CMA accepted binding commitments from Google concerning Chrome’s Privacy Sandbox proposals. |
| July 2024 | Google moved away from planned cookie removal toward an approach under which users could choose whether to retain third-party cookies. |
| April 2025 | Google said it would not deprecate third-party cookies or introduce the proposed standalone choice prompt. |
| June 13, 2025 | The CMA proposed releasing its commitments and consulted stakeholders. |
| October 17, 2025 | The CMA released the commitments and closed its case, concluding its concerns no longer arose under Google’s revised approach. |
The dates and the CMA’s account of its concerns are set out in its investigation record. The commitments concerned Chrome; Android Privacy Sandbox proposals were outside their scope.
What the CMA’s 2025 decision means
The CMA’s October 2025 action was a release of specific commitments after Google revised its Chrome approach. It was not a general endorsement of Google’s advertising practices, a ruling on the U.S. litigation or a conclusion that all Privacy Sandbox proposals were harmless. Nor does it establish the outcome of regulatory proceedings in other jurisdictions. It means the CMA no longer considered those particular commitments necessary for the Chrome approach then in place.
What Chrome users should expect
- The planned new standalone prompt did not arrive as part of Google’s April 2025 change; cookie controls remained in Chrome’s Privacy and Security Settings.
- Users did not get the expected Chrome-wide removal of third-party cookies through the abandoned deprecation plan.
- Cookie behavior can still vary with a website’s implementation, browser settings, extensions, enterprise policies and the browser or platform being used. Chrome’s policy does not describe the behavior of Safari, Firefox or mobile operating systems.
- Keeping cookies is not a privacy or legal safe harbor. Consent requirements and other privacy protections may still apply.
Incognito mode should not be treated as anonymity. A 2025 report described third-party-cookie blocking in Incognito and discussed IP Protection as a forthcoming feature at that time; those details do not establish the current implementation of every Chrome version. Cookie controls, private browsing and IP protections address different tracking mechanisms.
Rank #4
- Google Pixel 10 Pro is the ultimate Pixel experience, featuring advanced AI with Gemini, unbelievable camera quality, impeccable design in two sizes, and the next-gen Google Tensor G5 chip[1]
- Unlocked Android phone gives you the flexibility to change carriers and choose your own data plan[2]; it works - Google Fi, Verizon, T-Mobile, AT&T, and other major carriers
- Get a head start on syncing your data before it even arrives: After you purchase your new Pixel, look for an email that explains how to transfer your photos, videos, passwords, and more in just a few quick steps[11]
- Pixel’s pro camera system makes everything look amazing, even in low light; capture more of the scene with advanced Google AI models, and bring out incredible details with 100x Pro Res Zoom, stunning 50 MP images, and super steady videos in 8K[10]
- Pixel 10 Pro is built with durable aluminum and Corning Gorilla Glass Victus 2 for scratch and drop resistance; the 6.3-inch Super Actua display with 3,300-nit peak brightness is easy on the eyes, even in direct sunlight[3,13,18]
What publishers, advertisers and ad-tech firms should do
Google’s decision removed the previously expected near-term Chrome-wide cookie shutdown, so businesses did not have to migrate on that timetable alone. Cookie-based workflows could continue in Chrome, subject to user choices, other browser and platform restrictions, and applicable consent and privacy rules. The change reduced immediate migration pressure but left the industry without the same certainty about a replacement architecture.
- Maintain measurement and targeting plans that account for differences among browsers, platforms and user settings rather than assuming Chrome policy applies everywhere.
- Assess existing investments in first-party data, clean rooms, server-side measurement, contextual advertising, alternative identity systems and Privacy Sandbox tools on their own merits; the cookie reversal does not automatically make them obsolete.
- Keep privacy-law and consent reviews separate from technical availability. A cookie that can be used in a browser is not necessarily lawful to deploy for every purpose or audience.
- Track changes to Chrome controls and Privacy Sandbox components individually. The status of third-party cookies does not determine the status of every API or proposal.
For ad-tech companies, the competition question also remains distinct from the practical availability of cookies: any future browser change could affect market access and incentives, not just tracking methods.
Best Value
- Google Pixel 7 is powered by Google Tensor G2; it’s faster, more efficient, and more secure, with the best photo and video quality yet on Pixel[1].Other camera description:Front,Rear.Bluetooth Version 5.2 with dual antennas for enhanced quality and connection.
- Unlocked Android 5G phone gives you the flexibility to change carriers and choose your own data plan[2]; works with Google Fi, Verizon, T-Mobile, AT&T, and other major carriers
- Pixel’s Adaptive Battery can last over 24 hours; when Extreme Battery Saver is turned on, it can last up to 72 hours[3]
- The 6.3-inch Pixel 7 display is super sharp, with rich, vivid colors; it’s fast and responsive for smoother gaming, scrolling, and moving between apps[4]
- Google Pixel 7 has wide and ultrawide lenses with up to 8x Super Res Zoom[5]; and Cinematic Blur brings more drama to your videos
What remains uncertain
Google’s April 2025 position preserved cookies while continuing work on a broader roadmap; it should not be treated as a permanent settlement of Chrome’s privacy policy. Future changes to browser controls, Privacy Sandbox APIs, litigation remedies or regulation could alter the landscape. The CMA’s closure resolves its specific commitments under Google’s revised Chrome approach, not the broader debate over privacy, advertising markets or Google’s conduct.
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