Mozilla has officially released the final builds for Firefox 153 Extended Support Release (ESR) . Designed primarily for enterprise IT environments, organizations, and stability-focused users, this release provides a predictable, secure platform that will receive critical maintenance and security updates for the next 15 months. Firefox 153 ESR builds upon the foundation of previous enterprise releases. It serves as the official successor to the Firefox 140 ESR branch, which continues receiving security patches until September 2026. Once the 140 series reaches its end-of-life, Firefox 153 ESR will maintain its position as a primary long-term release alongside the ongoing Firefox 115 ESR series. Standout End-User & Interface Features This release introduces several quality-of-life enhancements aimed at improving daily browsing workflows, media consumption, and security awareness: ...