[better] Download Mozilla Firefox Esr 48 [2026]

While Firefox 48 was a major release on August 2, 2016, the corresponding Extended Support Release (ESR) active at that time was actually Firefox ESR 45.3 . If you specifically need an ESR version for 2016-era compatibility, version 45 is the correct branch. System Requirements for Firefox 48

While newer versions of Firefox are available, some users still need to for specific legacy systems, testing purposes, or compatibility with older web applications. Official Download Sources download mozilla firefox esr 48

Mozilla maintains an archive of all past releases for developers and legacy users. You can find the installation files for version 48 through the Mozilla FTP Archive . While Firefox 48 was a major release on

Index of /pub/firefox/releases/48.0.2/ . Official Download Sources Mozilla maintains an archive of

Index of /pub/firefox/releases/48.0/.

Before installing, ensure your hardware and OS meet these requirements:

Directory Listing: /pub/firefox/releases/48.0/ - mozilla.org Directory Listing: /pub/firefox/releases/48.0/ mozilla.org Firefox 48.0 System Requirements