Стрелка_вверх

If you are currently browsing on your Sierra machine, the process is straightforward:

: The website should recognize your operating system version and automatically offer you Firefox 115 ESR .

For users on macOS 10.12 Sierra, the final supported version is .

: Go to the Mozilla Firefox Download Page.

Eject the disk image and launch Firefox from your Applications folder or Dock. Why You Should Use ESR on Sierra

Unlike the standard version of Firefox that updates every few weeks with new features, the version is designed for stability and long-term security. Mozilla has committed to providing critical security updates for Firefox 115 ESR until August 2026 . This makes it one of the few mainstream browsers still offering security protection for Sierra users, as most Chromium-based browsers (like Chrome and Edge) have already dropped support. How to Download Firefox for macOS 10.12

: If it doesn't detect it, or if you are downloading from a different computer, you can find specific versions through the Mozilla Support article for older macOS versions . Install the App : Open the Firefox.dmg file once the download finishes. Drag the Firefox icon into your Applications folder.

Firefox For Mac Os | X 10.12 Download Exclusive

If you are currently browsing on your Sierra machine, the process is straightforward:

: The website should recognize your operating system version and automatically offer you Firefox 115 ESR . firefox for mac os x 10.12 download

For users on macOS 10.12 Sierra, the final supported version is . If you are currently browsing on your Sierra

: Go to the Mozilla Firefox Download Page. Eject the disk image and launch Firefox from

Eject the disk image and launch Firefox from your Applications folder or Dock. Why You Should Use ESR on Sierra

Unlike the standard version of Firefox that updates every few weeks with new features, the version is designed for stability and long-term security. Mozilla has committed to providing critical security updates for Firefox 115 ESR until August 2026 . This makes it one of the few mainstream browsers still offering security protection for Sierra users, as most Chromium-based browsers (like Chrome and Edge) have already dropped support. How to Download Firefox for macOS 10.12

: If it doesn't detect it, or if you are downloading from a different computer, you can find specific versions through the Mozilla Support article for older macOS versions . Install the App : Open the Firefox.dmg file once the download finishes. Drag the Firefox icon into your Applications folder.