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Google Delays Blocking Third-Party Cookies in Chrome to 2023

In addition, Google plans on securing clearance from the UK’s Competition and Markets Authority before embarking on the cookie-blocking plan.

 & Michael Kan Principal Reporter

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Google’s original plan to block third-party cookies in Chrome this year has been pushed back to mid-2023. 

The company needs more time to get stakeholders —including regulators and businesses— on board with the plan, which could upend the entire online ad industry. 

“In order to do this, we need to move at a responsible pace,” Chrome privacy engineering directory Vinay Goel wrote in a blog post on Thursday. “This will allow sufficient time for public discussion on the right solutions, continued engagement with regulators, and for publishers and the advertising industry to migrate their services.” 

“This is important to avoid jeopardizing the business models of many web publishers which support freely available content,” he added. 

Third-party cookies are a major way websites serve relevant ads to users. However, the same technology works by tracking user's activities from one site to the next, which can infringe on  your privacy. 

Other browsers including Firefox and Apple’s Safari already block third-party cookies to help stop the tracking. However, Chrome has a dominant presence in the browser space, with a 64 percent share of the market. Hence, Google’s decision to render third-party cookies “obsolete” by 2021 was bound to send shockwaves throughout the ad industry, and raise antitrust complaints.  

Google Chrome symbol

The other issue with Google’s plan has been the company’s proposed replacement for third-party cookies. The tech giant has been testing a new approach called the “Privacy Sandbox," which can still track user activities on the internet, but only in a bulk manner.   

According to Google, the system can still serve up relevant ads to consumers, but without profiling anyone’s internet habits individually. However, the approach comes with a catch: Google gets even more power over their online ad data flows at the expense of third-party businesses. 

In response, the blog post from Goel notes Google plans on securing clearance from the UK’s Competition and Markets Authority before embarking on the cookie-blocking plan.  

“Subject to our engagement with the United Kingdom’s Competition and Markets Authority (CMA) and in line with the commitments we have offered, Chrome could then phase out third-party cookies over a three month period, starting in mid-2023 and ending in late 2023,” Goel added. 

In the meantime, the company plans on gathering public input and rigorously testing each proposal in the Privacy Sandbox before readying them for potential adoption. “For Chrome, specifically, our goal is to have the key technologies deployed by late 2022 for the developer community to start adopting them,” Goel said. 

“We believe that the Privacy Sandbox will provide the best privacy protections for everyone,” he added. “By ensuring that the ecosystem can support their businesses without tracking individuals across the web, we can all ensure that free access to content continues.”

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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