Mozilla’s Firefox 141 Extends Cookie Isolation to Service Workers, Adds Native Passkeys
Mozilla began shipping Firefox 141 on 13 October 2026 for every platform via mozilla.org, and the release centres on the most substantial rework of the browser’s privacy stack in two years. The headline change is a deep revision of Total Cookie Protection (TCP), which now stretches cookie isolation beyond classic third-party requests into service workers, … Read more