Open Chrome Settings > Privacy and security > Third-party cookies and choose Block third-party cookies. Add a narrow exception only if a trusted site breaks.
Blocking third-party cookies limits cookies created by sites other than the one in the address bar. It does not stop every form of tracking, remove existing first-party data, block ads, or replace the privacy and consent settings of websites you use.
2
Open Chrome's cookie settings
On a computer, open Chrome > More > Settings > Privacy and security > Third-party cookies. On a managed browser, a building or policy icon can indicate that the organization controls the setting.
3
Block third-party cookies
Choose Block third-party cookies. Review related-site and other options shown on the same page instead of assuming every embedded sign-in or payment flow will continue to work unchanged.
Reload the sites you rely on for sign-in, payments, document embeds, or media. If one trusted service breaks, note the domain and exact feature before weakening the global setting.
5
Create the narrowest exception
Under Sites allowed to use third-party cookies, add only the trusted site that needs access, or use Chrome's temporary address-bar control. Avoid broad wildcard exceptions unless every subdomain is necessary.
6
Remove old exceptions and data separately
Periodically review the exception list and remove sites no longer needed. Deleting cookies is a separate action that can sign you out and remove saved site preferences, so select a specific site's data when broad deletion is unnecessary.
Video walkthrough
If it does not work
If a page still tracks or personalizes content, review Chrome's Ad privacy settings and the website's own account and consent controls; third-party-cookie blocking alone is not a guarantee of anonymity. If a managed policy prevents changes, contact the administrator rather than launching Chrome with unsupported flags.
ⓘ Sources and verification
Checked against official documentation on . Scope: Platform not recorded.
Follow the linked first-party guidance if labels differ after a platform or app update.
