Yes, for stable version if they want to track something more. But we are talking about test version. You accept this when downloading "Firefox Nightly automatic

Yes, for stable version if they want to track something more. But we are talking about test version. You accept this when downloading "Firefox Nightly automatically sends feedback to Mozilla.": https://www.mozilla.org/en-US/privacy/firefox/#telemetry https://www.mozilla.org/en-US/privacy/firefox/#telemetry How you want to improve something without data? Based on intuitions?