Since you asked, I have read the code (quite a while ago). The telemetry bits can be disabled easily. A new firefox installation (or rather, a new firefox prof

Since you asked, I have read the code (quite a while ago). The telemetry bits can be disabled easily. A new firefox installation (or rather, a new firefox profile) will open in a tab: https://www.mozilla.org/en-US/privacy/firefox/ https://www.mozilla.org/en-US/privacy/firefox/ . That website has a button under the "Improve performance and stability for users everywhere" section that will bring you directly to the section of the preferences where you can disable telemetry and crash reports and such. Did you read the privacy page? PS: Firefox used to pop up a small notification bar at the bottom on fresh profiles instead of that privacy pge that asked you to allow telemetry data sharing. That seems to be gone now. The previous solution was more obvious about the stuff but also worse UI/UX. The privacy page could and should be improved to make the preferences button more visible or at least not-hidden in a collapsed section by default.