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Firefox for Mac

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Firefox 17.0.1

  -  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 17.0.1.


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 17.0.1 Screenshots

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

What's new in this version:

Fixed:
- Font rendering issue in Firefox 17.0 (bug 814101)
- 17.0.1: Reverted user agent change causing some website incompatibilities
- Over twenty performance improvements, including fixes around the New Tab page
- 17.0.1: Leaving Private Browsing with Social API enabled should reset social components (814554)
- Pointer lock doesn't work in web apps (769150)
- Page scrolling on sites with fixed headers (780345) Known Issues Unresolved If you try to start Firefox using a locked profile, it will crash (see 573369) Unresolved For some users, scrolling in the main GMail window will be slower than usual (see 579260) Unresolved Windows: The use of Microsoft's System Restore functionality shortly after updating Firefox may prevent future updates (see 730285)

New:
- First revision of the Social API and support for Facebook Messenger
- Click-to-play blocklisting implemented to prevent vulnerable plugin versions from running without the user's permission (see blog post)

Changed:
- Updated Awesome Bar experience with larger icons
- Mac OS X 10.5 is no longer supported

Developer:
- JavaScript Maps and Sets are now iterable
- SVG FillPaint and StrokePaint implemented
- Improvements that make the Web Console, Debugger and Developer Toolbar faster and easier to use
- New Markup panel in the Page Inspector allows easy editing of the DOM

HTML 5:
- Sandbox attribute for iframes implemented, enabling increased security

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