Firefox 78 Esr Download Best May 2026

: 78.15.0esr is the final and most secure "point release" of the 78 series, released in October 2021.

You can download Firefox 78.15.0esr for Mac OS X 10.9, 10.10, and 10.11 from: * **ftp.mozilla.org/pub/firefox/releases/78.15.0esr/ 9to5Linuxhttps://9to5linux.com firefox 78 esr download

: Index of /pub/firefox/releases/78.15.0esr/ Because this is an older version, it is

Firefox 78 ESR (Extended Support Release) is a legacy version of the Firefox browser specifically designed for stability in large-scale environments like universities and corporations. While it is no longer the current version, it remains a critical download for users on older operating systems that cannot run modern browser releases. Because this is an older version

Because this is an older version, it is no longer prominently featured on the main Firefox homepage. You can securely download it from the official :

: For a version that doesn't require installation, you can use Firefox Portable Legacy 78 from PortableApps.com. Key Reasons for Downloading Firefox 78 ESR Mozilla Supporthttps://support.mozilla.org How/where to get Firefox 78