Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

older version firefox

  • 1 reply
  • 0 have this problem
  • 46 views
  • Last reply by James

more options

I have an older imac that had to be wiped and os 10.14 (Mojave) reinstalled. I need the firefox version to install.

I have an older imac that had to be wiped and os 10.14 (Mojave) reinstalled. I need the firefox version to install.

All Replies (1)

more options

Firefox 116.0 and later requires macOS 10.15 or later to run.

For the eol macOS 10.12, 10.13, 10.14 Mozilla is still supporting the older Firefox 115 ESR which is currently at 115.20.0esr though unless Mozilla decides to extend updates again, the last planned up[date will be 115.21.0esr in March. https://support.mozilla.org/en-US/kb/firefox-users-macos-1012-1013-1014-moving-to-extended-support

Firefox 115.20.0esr.dmg https://archive.mozilla.org/pub/firefox/releases/115.20.0esr/mac/en-US/ other language folders at https://archive.mozilla.org/pub/firefox/releases/115.20.0esr/mac/

While you may know how to install Firefox on macOS I will still link https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac