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Not able to install newest version of Firefox on our iMac (OSX version 10.7).

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Not able to install newest version of Firefox on our iMac (OSX version 10.7)

Not able to install newest version of Firefox on our iMac (OSX version 10.7)

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Firefox 45.9.0esr is the most current you can run on the ancient macOS 10.6, 10.7, 10.8 https://support.mozilla.org/en-US/kb/firefox-osx

Firefox 78.15.0esr is the most current you can run on macOS 10.9, 10.10, 10.11 https://support.mozilla.org/en-US/kb/firefox-mac-osx-users-esr

Firefox 116.0 and later requires macOS 10.15 (ten.fifteen) at minimum to run so the macOS 10.12, 10.13, 10.14 users are being served the Fx 115.0 ESR (currently at 115.7.0esr) until 115.15.0esr in Sept 2024 in order to have security and allowed stability updates. https://support.mozilla.org/en-US/kb/firefox-users-macos-1012-1013-1014-moving-to-extended-support