Last updated: October 17, 2025
This page describes implementation status for web and Android technologies developed as part of the Privacy Sandbox initiative.
| Platform | Feature | Status |
|---|---|---|
| Chrome |
Bounce tracking mitigations CHIPS FedCM Fenced Frames frame-ancestors directive Private State Tokens Storage and Network State Partitioning Storage Access (including Storage Access Header) User-Agent Client Hints User-Agent reduction |
Continue to support |
| Chrome |
Aggregation Service Attribution Reporting Private Aggregation Protected Audience Related Web Sites (including requestStorageAccessFor()) Shared Storage (including Select URL) Topics |
Deprecate and remove |
| Chrome |
IP Protection Partitioned Popins Related Website Partition |
Discontinue |
| Chrome |
Fenced Storage Read Private Proofs Probabilistic Reveal Tokens Script Blocking |
Do not launch |
| Android |
Attribution Reporting On-Device Personalization Protected App Signals Protected Audience SDK Runtime Topics |
Deprecate and remove |
Web
Browser and web platform features.
Aggregation Service
- Scheduled for phaseout.
- Explainer: Aggregation Service for the Attribution Reporting API.
Attribution Reporting
- Scheduled for phaseout.
- Chrome Platform Status.
Bounce tracking mitigations
- The Bounce tracking mitigations proposal has been implemented for testing in Chrome. If you try this out and have any feedback, we'd love to hear it.
- Chrome Platform Status.
CHIPS
- Supported by default in Chrome 114 and higher.
- An origin trial, now complete, was available from Chrome 100 to 116.
- Read the Intent to Experiment and Intent to Ship.
Federated Credential Management (FedCM)
- Chrome Platform Status.
- FedCM shipped in Chrome 108.
- The FedCM proposal is open for public discussion.
- FedCM isn't supported in other browsers yet.
- Mozilla is implementing a prototype for Firefox and Apple has expressed general support and interest in working together on the FedCM proposal.
Fenced Frames
Fenced Storage Read
- Scheduled for phaseout.
- Explainer: Fenced Storage Read API.
frame-ancestors directive
- Continue to support.
- See Content-Security-Policy: frame-ancestors directive.
IP Protection
- Scheduled for phaseout.
- Chrome Platform Status.
Partitioned Popins
- Scheduled for phaseout.
- Chrome Platform Status
Private Aggregation
- Scheduled for phaseout.
- Chrome Platform Status.
Private Proofs
- Scheduled for phaseout.
- Explainer: Private Proof API
Private State Tokens
- Chrome Platform Status.
- In origin trial Chrome 84 to 101: now closed.
- Demo.
- Chrome DevTools integration.
Probabilistic Reveal Tokens
- Scheduled for phaseout.
- Chrome Platform Status.
Protected Audience
- Scheduled for phaseout.
- Chrome Platform Status.
Related Website Sets
- Scheduled for phaseout.
- Including requestStorageAccessFor and Related Website Partition.
- Chrome Platform Status.
Script blocking
- Scheduled for phaseout.
- Explainer: Mitigating API Misuse for Browser Re-Identification.
Shared Storage
- Scheduled for phaseout.
- Including Select URL
- Chrome Platform Status.
Storage Access
- Storage Access API supported by default from Chrome 119 an higher.
- Chrome Platform Status.
- Blink status.
Storage and Network State Partitioning
- Continue to support.
- See Storage Partitioning
Topics
- Scheduled for phaseout.
- Chrome Platform Status.
User-Agent reduction and Client Hints (UA-CH)
Limit passively shared browser data to reduce the volume of sensitive information which leads to fingerprinting.
- Origin trial Chrome 95 to 103, ended March 7, 2023.
- Deprecation trial Chrome 103 to Chrome 116, ended September 23, 2023.
- Chrome DevTools integration.
- Review the UA-CH Chrome platform status.
User-Agent Client Hints API documentation is available on MDN.
Android
Android Privacy Sandbox release notes provides information about past Developer Preview and Beta programs and releases.
Attribution Reporting
- Scheduled for phaseout.
On-device personalization
- Scheduled for phaseout.
- Explainer: On-Device Personalization - personalization with enhanced privacy protection
Protected App Signals
- Scheduled for phaseout.
Protected Audience
- Scheduled for phaseout.
SDK Runtime
- Scheduled for phaseout.
Topics
- Scheduled for phaseout.
Find out more
Documentation for technologies that are being phased out will be retained on this site for future reference.
Status information will also be updated on individual technology pages.
Blink, Chromium, and Chrome
- Managing feature lifecycle: Deprecation and removal
- Chrome release schedule
- Intent to explain: Demystifying the Blink shipping process
- blink-dev: implementation (and deprecation) announcements and discussion for features in Blink, the rendering engine used by Chromium