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

Firefox for Mac

Firefox 58.0.1

  -  52.8 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 58.0.1.

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 58.0.1 Screenshots

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    Firefox 58.0.1 Screenshot 1
  • Firefox 58.0.1 Screenshot 2
  • Firefox 58.0.1 Screenshot 3
  • Firefox 58.0.1 Screenshot 4
  • Firefox 58.0.1 Screenshot 5

What's new in this version:

Performance improvements, including:
- Rendering graphics for Windows users by using Off-Main-Thread Painting (OMTP)
- Loading pages faster by changing how Firefox caches and retrieves JavaScript

Improvements to Firefox Screenshots:
- Copy and paste screenshots directly to your clipboard
- Firefox Screenshots now works in Private Browsing mode
- Added Nepali (ne-NP) locale

In case you missed it—57 Release privacy and performance feature:
- Users can enable Tracking Protection at all times. Learn how to turn Tracking Protection on

- Fonts installed in non-standard directories will no longer appear blank for Linux users
- Various security fixes

- User profiles created in Firefox 58 (and in future releases) are not supported in previous versions of Firefox. Users who downgrade to a previous version should create a new profile for that version. Learn about alternatives to downgrading on our support site.
- Added a warning to alert users and site owners of planned security changes to sites affected by the gradual distrust plan for the Symantec certificate authority

- Implemented the PerformanceNavigationTiming API
- Added PerformanceResourceTiming.workerStart so sites can measure service worker startup time

Developer Information:
- Users running Firefox for Windows over a Remote Desktop Connection (RDP) may find that audio playback is disabled due to increased security restrictions. Learn how to mitigate this issue until it is corrected in an upcoming release.
- Users running certain screen readers may experience performance issues and are advised to use Firefox ESR until performance issues are resolved in an upcoming future release
- When using certain non-default security policies on Windows (for example with Windows Defender Exploit Protection or Webroot security products), Firefox may fail to load pages