Google announced earlier through its Privacy Sandbox official websiteUpdate news, indicating that this grand project launched in 2019 to replace third-party cookies has officially been terminated.
In the announcement, Google Vice President Anthony Chavez clearly stated that due to the "low levels of adoption" of the "remaining technologies" developed for Sandbox, the company decided to terminate it.
According to the content subsequently confirmed by AdWeek website with a Google spokesperson, this termination is not limited to certain technologies, but means that Google will completely disable the entire Privacy Sandbox program and brand.
Brands are leaving, but the exploration of privacy will continue
A Google spokesperson added: "We will continue to work on improving privacy in Chrome, Android, and across the web, but will no longer use the Privacy Sandbox brand."
This means that the brand that originally carried Google's years of attempts to balance the contradiction between "personalized advertising" and "user privacy" has finally become history after countless controversies and delays.
However, Google also emphasized that its past efforts were not entirely in vain. A spokesperson said: "We thank everyone who contributed to this project and will continue to work with the industry to develop and advance platform technologies to support a healthy and prosperous online ecosystem."
Looking back at 2019: The grand vision of replacing cookies
Back in 2019, Google launched its Privacy Sandbox project amid growing global concerns about user privacy tracking (especially after Apple, like Safari, blocked cookies). Its core goal was to find a solution within the Chrome browser that could "replace" third-party cookies in the future.
Privacy Sandbox is essentially a collection of open standard technologies (such as FLoC, Topics API, and FLEDGE). Its design philosophy is to enable advertisers to deliver personalized ads without disclosing personally identifiable user information. For Google, which relies heavily on advertising revenue, this initiative is seen as a crucial step in maintaining its dominance in advertising while complying with regulatory trends.
Years of delay: Regulators' scrutiny
However, the project has been fraught with difficulty since its inception. Google's original schedule for phasing out third-party cookies was forced to reverse due to a series of technical delays and regulatory hurdles.Repeated postponement.
The biggest resistance comes from global regulators, including the UK Competition and Markets Authority (CMA) and the US Department of Justice (DOJ), which have launched in-depth antitrust investigations into Privacy Sandbox.
The core concern of regulators is that the new standard proposed by Google (Privacy Sandbox), ostensibly for privacy, could leverage the market dominance of its Chrome browser to further consolidate its monopoly in digital advertising and deal a devastating blow to small advertisers that rely on third-party cookies.
Policy U-turn: From elimination to maintaining the status quo
Under tremendous regulatory pressure, Google's position began to change dramatically.
First, in 2024, Google finally decided"no longer"It will completely kill third-party cookies in Chrome and instead launch a "new experience" that allows users to "make an informed choice" about whether to be tracked.
In April 2025, Google softened its stance further, announcing that it would "not make any significant changes" to how third-party cookies work in Chrome and would maintain the third-party cookie choices currently offered to users.
This decision is tantamount to declaring that the Privacy Sandbox project's original core mission of "replacing cookies" has failed.
Lack of adoption: The straw that broke the camel’s back
Ironically, even when announcing the status quo of cookies in April, Google still insisted that"Continue to maintain the Privacy Sandbox project"But between April and October of this year, the situation changed radically.
As Anthony Chavez noted in his latest announcement, low adoption was the final straw that broke the camel's back. This means that despite Google's significant investment of resources, its proposed alternatives, such as FLoC and the Topics API, have not garnered widespread support from advertisers, publishers, and developers in the real world.
With the core goal of phasing out cookies abandoned and alternative technologies lacking traction, the "Privacy Sandbox" brand clearly had no value. Consequently, Google ultimately chose to cut its losses, officially ending its six-year attempt to reform web privacy standards.
For the majority of Internet users, this also means that third-party cookie tracking will continue to exist in Chrome for the foreseeable future.
