Third-party cookies
Understand cookie usage on your site.
Learn how to transition to alternatives.
Prepare for Chrome changes
Learn more about changes to Chrome's treatment of third-party cookies and understand what actions you need to take to preserve your site's features.
Audit your use of cookies
Review your cookies and make a list of those cookies for which you will need to take action to ensure they keep functioning properly.
Test for breakage
Set up Chrome to simulate the state when third-party cookies are blocked by user choice.
Migrate to privacy preserving solutions
Once you have identified the cookies with issues and you understand the use cases for them, you can work through the following options to pick the necessary solution.
CHIPS
The new cookie attribute, Partitioned, allows developers to opt a cookie into partitioned storage, with separate cookie jars per top-level site.
Storage Access API
Storage Access API allows iframes to request storage access permissions when access would otherwise be denied by browser settings.
Related Website Sets
Related Website Sets (RWS) is a way for a company to declare relationships among sites, so that browsers allow limited third-party cookie access for specific purposes.
Federated Credential Management API
A web API for privacy-preserving identity federation.
Guides for common workflows
Understand how to test common workflows that may rely on third-party cookies and decide on which privacy-preserving alternatives to migrate to.
Identity guide
Find recommended solutions for sign-in scenarios.
Embed guide
Test for embed-related journeys that rely on third-party cookies, and learn how to choose between the privacy-preserving alternatives.
Temporary exceptions
Cross-site cookies have been a critical part of the web for over a quarter of a century. Moving to alternative solutions requires a coordinated and incremental approach, and we understand there are cases where sites need extra time to make the necessary changes and preserve critical user experiences.
Grace period
Chrome's third-party cookie grace period provides a way for sites and services experiencing breakage to request additional time to move away from third-party cookies to alternative solutions.
Heuristics based exceptions
Learn more about temporary heuristics based exceptions.
Enterprise support
Learn more about Chrome Enterprise policies for third-party cookies.
News and updates
Features and tooling to help you transition from third-party cookies.
Updates to temporary third-party cookie exceptions in Chrome
Chrome is extending the grace period that allows sites and services demonstrating user-facing, non-ads breakage to continue to access third-party cookies.
An opt-out mechanism for the third-party cookie grace period
When a breakage report is filed at goo.gle/report-3pc-broken and meets all eligibility criteria, Chrome initiates a grace period that provides continued access to third-party cookies for a limited time. Chrome is now providing a mechanism to allow sites to opt out of the grace period for a percentage of users.
FedCM updates: origin trials for the Continuation API bundle and Storage Access API auto-grant
Chrome 126 starts origin trials for the Continuation API bundle and Storage Access API auto-grant
Report issues with third-party cookies and get help
We want to ensure we capture the various scenarios where sites break without third-party cookies to ensure that we have provided guidance, tooling, and functionality to allow sites to migrate away from their third-party cookie dependencies. If your site or a service you depend on is breaking with third-party cookies disabled, you can submit it to our breakage tracker.