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

Firefox for Mac

Firefox 23.0

  -  42.26 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 23.0.


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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  • Firefox 23.0 Screenshots

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    Firefox 23.0 Screenshot 1
  • Firefox 23.0 Screenshot 2
  • Firefox 23.0 Screenshot 3
  • Firefox 23.0 Screenshot 4
  • Firefox 23.0 Screenshot 5

What's new in this version:

- Mixed content blocking enabled to protects users from man-in-the-middle attacks and eavesdroppers on HTTPS pages (learn more)
- Options panel created for Web Developer Toolbox
- "Enable JavaScript" preference checkbox has been removed and user-set values will be reset to the default
- Updated Firefox Logo
- Improved about:memory's functional UI
- Simplified interface for notifications of plugin installation
- Enabled DXVA2 on Windows Vista+ to accelerate H.264 video decoding
- Users can now switch to a new search provider across the entire browser
- CSP policies using the standard syntax and semantics will now be enforced <input type='file'> rendering improvements (see bug 838675)
- Replace fixed-ratio audio resampler in webrtc.org capture code with Speex resampler and eliminate pseudo-44000Hz rate
- "Load images automatically" and Always show the tab bar" checkboxes removed from preferences and reset to defaults
- HTML5 <input type="range"> form control implemented
- Write more accessible pages on touch interfaces with new ARIA role for key buttons
- Social share functionality
- Added unprefixed requestAnimationFrame
- Implemented a global browser console
- Dropped blink effect from text-decoration: blink; and completely removed element
- New feature in toolbox: Network Monitor
- Various security fixes