Firefox Esr Version History
How often is Firefox ESR updated?
Extended Support Release (ESR): receives major updates on average every 42 weeks with minor updates such as crash fixes, security fixes and policy updates as needed, but at least every four weeks.
Choosing a Firefox update channel - Mozilla Support
Is Firefox ESR no longer supported?
Firefox ESR versions are maintained for a longer period compared to stable releases. ... The latter will see two additional releases, Firefox 78.14 ESR and Firefox 78.15 ESR before it will be discontinued; this will happen in October 2021. Firefox 91 ESR marks the beginning of a new base for extended support releases.
Firefox ESR 91: new ESR version will be released tomorrow
What is the newest version of Firefox ESR?
This was gradually accelerated further in late 2019, so that new major releases occur on four-week cycles starting in 2020. Firefox 95 is the latest version; it was released on December 7, 2021.
Firefox version history - Wikipedia
Firefox 91 ESR includes all of the enhancements since Firefox 78 along with many new features to make your enterprise deployments easier and even more flexible.
Firefox ESR Release Notes - Mozilla