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Firefox for Mac

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Download Firefox 47.0

Firefox 47.0

  -  84.37 MB  -  Freeware
  • Latest Version:

    Firefox 120.0.1

  • Requirements:

    Mac OS X

  • User Rating:

    Click to vote
  • Author / Product:

    Mozilla Organization / External Link

  • Old Versions:

  • Filename:

    Firefox 47.0.dmg

  • MD5 Checksum:


Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system. Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Firefox 47.0.

For those interested in downloading the most recent release of Firefox for Mac or reading our review, simply click here.

All old versions distributed on our website are completely virus-free and available for download at no cost.

We would love to hear from you

If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

  • Firefox 47.0 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

What's new in this version:

- Support for Google’s Widevine CDM on Windows and Mac OS X so streaming services like Amazon Video can switch from Silverlight to encrypted HTML5 video.
- Enable VP9 video codec for users with fast machines
- Embedded YouTube videos now play with HTML5 video if Flash is not installed.
- View and search open tabs from your smartphone or another computer in a sidebar
- Allow no-cache on back/forward navigations for https resources
- Latgalu [ltg] locale added. Wikipedia tells us there are 164,500 daily speakers.

- Various security fixes

- FUEL (Firefox User Extension Library) has been removed. Add-ons relying on it will stop working.
- The browser.sessionstore.restore_on_demand preference has been reset to its default value (true) to avoid e10s performance problems. Because faster is better!
- The Firefox click-to-activate plugin whitelist has been removed.

- Web platform changes
- View, start,and debug registered Service Workers in the Service Workers developer tool
- Simulate Push messages in the Service Workers developer tool
- 'Start' button for service workers in about:debugging to start registered Service Workers
- Changes that can affect add-on compatibility
- Added support for ChaCha20/Poly1305 cipher suites
- Custom user agents supported in Responsive Design Mode
- Smart multi-line input in the Web Console

- cuechange events are now available on TextTrack objects
- WebCrypto: PBKDF2 supports SHA-2 hash algorithms
- WebCrypto: RSA-PSS signature support

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