One of the World`s Most Popular Web Browsers for Mac

Firefox for Mac

Firefox 17.0

  -  34.1 MB  -  Freeware

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 17.0.


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.


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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 17.0 Screenshots

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    Firefox 17.0 Screenshot 1
  • Firefox 17.0 Screenshot 2
  • Firefox 17.0 Screenshot 3
  • Firefox 17.0 Screenshot 4
  • Firefox 17.0 Screenshot 5

What's new in this version:

- FIXED - 16.0.2: Security fixes can be found here
- FIXED - 16.0.1: Vulnerability outlined here
- NEW - Firefox on Mac OS X now has preliminary VoiceOver support turned on by default
- NEW - Initial web app support (Windows/Mac/Linux)
- NEW - Acholi and Kazakh localizations added
- CHANGED - Improvements around JavaScript responsiveness through incremental garbage collection
- DEVELOPER - New Developer Toolbar with buttons for quick access to tools, error count for the Web Console, and a new command line for quick keyboard access
- DEVELOPER - CSS3 Animations, Transitions, Transforms and Gradients unprefixed in Firefox 16
- DEVELOPER - Recently opened files list in Scratchpad implemented
- FIXED - Debugger breakpoints do not catch on page reload (783393)
- FIXED - No longer supporting MD5 as a hash algorithm in digital signatures (650355)
- FIXED - Opus support by default (772341)
- FIXED - Reverse animation direction has been implemented (655920)
- FIXED - Per tab reporting in about:memory (687724)
- FIXED - User Agent strings for pre-release Firefox versions now show only major version (728831)