The Third-Party Cookie Didn’t Die. Your Privacy Work Still Matters.
Google spent six years promising to kill the third-party cookie, then didn’t. Here’s what actually happened — and why the privacy work the deadline inspired is still worth finishing.

For six years, the digital marketing world prepared for a funeral. Google announced in 2020 that Chrome would phase out third-party cookies, joining Safari and Firefox, which already block them by default. Deadlines were set, delayed, and reset. Whole categories of software were built for the “cookieless future.”
Then, in April 2025, Google called it off. Chrome keeps third-party cookies. There is no deprecation, no opt-in prompt, no deadline.
So was all that preparation wasted? No - and understanding why is the point of this article. The reasons to move away from third-party tracking were never really about Chrome’s roadmap. They were about regulation, user trust, and the third of the web that already blocks these cookies. All of that is still true.
What Actually Happened
A short timeline, because the reversal was gradual and easy to miss: - 2020: Google announces Chrome will phase out third-party cookies within two years, and begins building Privacy Sandbox as the replacement. - 2021 - 2023: The deadline slips three times as advertisers, regulators, and Google itself wrestle with what replaces cookie-based advertising. - July 2024: Google abandons deprecation and proposes a user-choice prompt instead - Chrome users would decide for themselves. - April 2025: Google scraps the prompt too. Third-party cookies stay in Chrome, full stop, and the Privacy Sandbox APIs built to replace them are scaled back.
The result: Chrome, with roughly two-thirds of the browser market, keeps third-party cookies indefinitely. Safari and Firefox continue to block them by default, as they have since 2020 and 2019.
That last part deserves more attention than it gets. If your marketing relies on third-party tracking, it has already been blind to Safari and Firefox users for years - a substantial share of your audience, and on many consumer sites the majority of mobile traffic. The funeral was called off, but the patient was never fully healthy.
Why the Privacy Work Still Matters
The deprecation deadline was always the weakest reason to reduce your dependence on third-party data. The stronger reasons did not go anywhere: - Regulation keeps tightening. GDPR in Europe and a growing roster of US state privacy laws - California’s CCPA/CPRA chief among them, with real penalties attached - govern how you collect and share personal data, cookie or no cookie. The regulatory direction of travel has been one way for a decade. - Users expect transparency. Consent banners, privacy policies, and opt-outs are now table stakes. Organizations that treat privacy as a feature of the experience, rather than a legal formality, earn measurably more trust. - Third-party signals are degrading anyway. Between the browsers that block cookies, the users who decline consent, and the devices that limit tracking, the third-party picture gets blurrier every year. First-party data - what users share with you directly, with consent - is the only signal that gets stronger.
Ultimately, reducing your reliance on third-party tracking is about doing what’s best for your users. It builds trust, it holds up under whatever regulation arrives next, and it works in every browser.
How Different Industries Should Read This
Not all organizations feel this shift equally. Here are some key industry-specific areas to consider.
Healthcare
Strict privacy laws and regulations like HIPAA have turned healthcare organizations into pioneers in this area. The Office for Civil Rights has warned covered entities about third-party cookies and tracking pixels, and that guidance applies regardless of what Chrome does. If your healthcare organization still uses third-party trackers for marketing, analytics, or site features, the compliance case for phasing them out is stronger than ever - Chrome’s reversal changed nothing for you.
Higher Education
Many institutions use third-party tools in digital campaigns to drive student enrollment. With personalization cookies, make sure they are set with the proper “SameSite” attribute, and engage your vendors about how they handle consent and data sharing. The question to ask is no longer “are you ready for deprecation?” but “are we compliant in every state our applicants live in?”
Nonprofits
Like higher education, nonprofits should review the vendors and ad networks they rely on to build their volunteer base or drive donations. Many nonprofits don’t use these services, but those that do should understand exactly what data flows to third parties - donors are exactly the audience most sensitive to seeing their generosity tracked.
4 Steps That Are Still Worth Taking
The to-do list from the deprecation era survives almost intact, because it was always privacy work dressed up as deadline work.
Audit Your Site
Take stock of the cookies and trackers you actually use. Your web partner can identify third-party cookie warnings in the browser console and map what each tracker does. In our experience, most organizations are surprised by what they find - tags outlive the campaigns they were installed for.
Identify What Each Cookie Is For
Don’t stop at listing the cookie. Review what function it serves and the role it plays in your organization’s digital footprint. Some third-party cookies support strategies worth keeping - those need consent and disclosure. Others serve nothing current and should simply go.
Talk to Your Vendors
Ask vendors how they handle consent, what data they share onward, and how they’ve adapted since the Privacy Sandbox wind-down. Consider it a red flag if a vendor is uninformed - the ecosystem has shifted twice since 2024, and a vendor who hasn’t noticed isn’t watching your interests.
Invest in First-Party Alternatives
This is where the real opportunity lives. Server-side analytics, authenticated experiences, preference centers, and direct relationships with your audience all produce data that is more accurate, more durable, and cleaner to use than anything a third-party cookie provided. The organizations that built these muscles during the deprecation scare are now ahead - not because the deadline arrived, but because the data is simply better.
The Cookie Survived. The Argument Didn’t.
Third-party cookies are still here, and they may be for years. But the six-year deprecation saga settled something anyway: the industry now knows how to live without them, regulators expect organizations to control their data flows, and users reward the brands that do.
Here at Pare, we see privacy-first data practices as a competitive advantage that no browser announcement can take away. Need a hand assessing where your website stands? Let’s talk about it.
First published as Oomph, Inc. Oomph is now Pare & Co.
Contributor

Ben Hamelin
Ben Hamelin is a lead back-end engineer in Engineering & Integration, writing custom code and site architecture since 2003. What a site is allowed to record about a visitor gets settled in the build, on platforms including RI.gov and AVMA.