Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

Mozilla サポートの検索

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

このスレッドはアーカイブに保管されました。 必要であれば新たに質問してください。

Cant install Firefox Browser on Mac OS X El Capitan 10.11.6

  • 1 件の返信
  • 1 人がこの問題に困っています
  • 7 回表示
  • 最後の返信者: James

Ericgwalsh
Ericgwalsh
more options

Unable to install Firefox on Mac Book Air OS X El Capitan 10.11.6

Unable to install Firefox on Mac Book Air OS X El Capitan 10.11.6

すべての返信 (1)

James
James
  • Top 25 Contributor
  • Moderator
more options

Firefox since Fx 79.0 and later including the current Fx 96 and 91 ESR requires macOS 10.12 (ten.twelve) at minimum.

Besides updating your OS to macOS 10.12 or later, the most current Firefox version you can install on macOS 10.9, 10.10 and 10.11 is Fx 78.15.0 ESR though it is EOL with no more updates.

https://support.mozilla.org/en-US/kb/firefox-mac-osx-users-esr

https://www.mozilla.org/firefox/78.0/system-requirements/ https://www.mozilla.org/firefox/79.0/system-requirements/ https://www.mozilla.org/firefox/96.0/system-requirements/

Firefox 78.15.0esr can be downloaded from below links. https://archive.mozilla.org/pub/firefox/releases/78.15.0esr/mac/en-US/ other locales at https://archive.mozilla.org/pub/firefox/releases/78.15.0esr/mac/