Firefox Esr Upd Download May 2026

Firefox Extended Support Release (ESR) is a specialized version of the Firefox browser designed primarily for organizations that prioritize stability and predictability over access to the latest UI features. Unlike the standard "Rapid Release" version, which receives major updates every four weeks, Firefox ESR is maintained for more than a year with only security and stability fixes.

Use Firefox or ESR as your enterprise browser for security at scale firefox esr download

While anyone can download and use Firefox ESR, it is specifically curated for: Firefox Extended Support Release (ESR) is a specialized