Mozilla engineers are discussing plans to change the way Firefox collects usage data (telemetry) Mozilla engineers cite the lack of usable data the Foundation is currently receiving via its data collection program. Users who want to share data with Mozilla must opt-in by ticking a checkbox in the Firefox settings. The organization is currently preparing to test an opt-out clause to collect more data relevant to the browser’s usage. Mozilla will implement a technique called “differential privacy”” for collecting the extra user data it needs.”
Source: https://www.bleepingcomputer.com/news/software/mozilla-testing-new-default-opt-out-setting-for-firefox-telemetry-collection/