Bleeping Computer
Mozilla has announced that it will introduce a more privacy-focused default Referrer Policy to protect Firefox users’ privacy, starting with the web browser’s next version.
The new user privacy protection feature against accidental leaking of sensitive user data will be introduced in Firefox 87.
Once updated, the web browser will automatically trim user-sensitive information like path and query string information accessible from the Referrer URL.
This URL is sent together with the HTTP Referrer header between websites during subresources requests and navigating between sites by clicking on links.