Is Silk - Privacy Pass Client safe?

Clean risk

Provides Privacy Pass tokens for websites that support the Privacy Pass protocol.

This extension responds when a supported website requests a Privacy Pass token and opens a challenge page for you to complete. After a successful challenge, it obtains one cryptographic token that can be used on supported sites, including Cloudflare-protected websites, to improve your human signal. Its permissions allow it to work across websites, use browser storage and tabs, and observe or block web requests.

Cloudflare ResearchFirefox Add-ons
0Risk
Who publishes it

Cloudflare Research - no other listings under this identity

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Cloudflare Research

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Where it sends data

Destinations our analysis observed Silk - Privacy Pass Client contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • Cloudflare Research

    Silk - Privacy Pass Client sends data to Cloudflare Research. Named as a recipient by 1 other extensions we have analysed.

  • websites that support the Privacy Pass protocol

    Silk - Privacy Pass Client sends data to websites that support the Privacy Pass protocol. Named as a recipient in this extension's own analysis.

Updated 15 October 2026amo-855318