'Mozilla Firefox will soon include a revised Referrer Policy to tighten up queries and better protect user information. From a report: Firefox 87, due to ship on March 23, will cut back on path and query string information from referrer headers "to prevent sites from accidentally leaking sensitive user data." In a blog post on Monday, developer Dimi Lee and security infrastructure engineering manager Christoph Kerschbaumer said the latest browser version will include a "stricter, more privacy-preserving default Referrer Policy." Browsers send HTTP Referrer headers to websites to indicate which location has 'referred' a user to a website server. Full URLs of referring documents are often sent in the HTTP Referrer header with other subresource requests, and while this may contain innocent information used for purposes including analytics, private user data may also be included. Referrer policies aim to protect this data, but if no policy is set by a website, this often defaults to "no-referrer-when-downgrade," an element that Firefox says does trim down the referrer when navigating to a less secure resource, but still "sends the full URL including path and query information of the originating document as the referrer."' -- source: https://tech.slashdot.org/story/21/03/22/1959256 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/