Disclaimer: I work for Mozilla on the operations team responsible for Firefox's backend services, including Normandy. TL;DR you are not sending us your browsin

Disclaimer: I work for Mozilla on the operations team responsible for Firefox's backend services, including Normandy. TL;DR you are not sending us your browsing history. If telemetry and studies were turned off, your browser wasn't sending us this unique id. If you had kept them enabled, for normandy telemetry you would have been sending us the data described at https://firefox-source-docs.mozilla.org/toolkit/components/normandy/normandy/data-collection.html https://firefox-source-docs.mozilla.org/toolkit/components/n... You can read more broadly about what data Firefox sends by default at https://www.mozilla.org/en-US/privacy/firefox/ https://www.mozilla.org/en-US/privacy/firefox/ And learn more about the review process any data collection has to go through at https://wiki.mozilla.org/Firefox/Data_Collection https://wiki.mozilla.org/Firefox/Data_Collection