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

Firefox for Mac

Firefox 13.0.1

  -  30.65 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 13.0.1.


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 13.0.1 Screenshots

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    Firefox 13.0.1 Screenshot 1
  • Firefox 13.0.1 Screenshot 2
  • Firefox 13.0.1 Screenshot 3
  • Firefox 13.0.1 Screenshot 4
  • Firefox 13.0.1 Screenshot 5

What's new in this version:

- FIXED - Windows Messenger did not load in Hotmail, and the Hotmail inbox did not auto-update (764546, fixed in 13.0.1)
- FIXED - Hebrew text sometimes rendered incorrectly (756850, fixed in 13.0.1)
- FIXED - Flash 11.3 sometimes caused a crash on quit (747683, fixed in 13.0.1)
- NEW - When opening a new tab, users are now presented with their most visited pages
- NEW - The default home page now has quicker access to bookmarks, history, settings, and more
- CHANGED - SPDY protocol now enabled by default for faster browsing on supported sites
- CHANGED - Restored background tabs are not loaded by default for faster startup
- CHANGED - Smooth scrolling is now enabled by default
- DEVELOPER - 72 total improvements to Page Inspector, HTML panel, Style Inspector, Scratchpad and Style Editor
- DEVELOPER - The column-fill CSS property has been implemented
- DEVELOPER - Experimental support for ECMAScript 6 Map and Set objects has been implemented
- DEVELOPER - Support for the CSS3 background-position property extended syntax has been added
- DEVELOPER - The :invalid pseudo-class can now be applied to the element
- DEVELOPER - The CSS turn unit is now supported
- FIXED - Various security fixes

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)
- UNRESOLVED - OS X: nsCocoaWindow::ConstrainPosition uses wrong screen in multi-display setup (see 752149)
- UNRESOLVED - CSS :hover regression when an element's class name is set by Javascript (see 758885)