How Long Will Firefox 78 ESR Be Supported?
The Firefox 78 ESR is the last version of Firefox that supports Flash. The last version of that ESR will be 78.15 which is scheduled to be released on 2021-10-05. This means that Flash will officially be out of support on Firefox when the Firefox 78 ESR reaches EOL on 2021-11-02.
Is Firefox 78 still supported?
Firefox 78 is the last major release with support for macOS versions 10.9, 10.10 and 10.11. Users of these macOS versions will be supported through Firefox ESR 78. x for the coming year. You can read more about this here.
Firefox for Enterprise 78 - Release notes - 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 latest ESR version of Firefox?
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
What versions of Firefox are still supported?
There are only 2 currently updated and supported Released versions, Firefox 9.0. 1 and Firefox 3.6. 25.
Supported Versions | Firefox Support Forum | Mozilla Support