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

Firefox (32-bit)

Firefox 39.0.3

  -  39.16 MB  -  Open Source
  • Latest Version

    Firefox 132.0.2 (32-bit)

  • Operating System

    Windows XP / XP64 / Vista / Vista64 / Windows 7 / Windows 7 64 / Windows 8 / Windows 8 64

  • User Rating

    Click to vote
  • Author / Product

    Mozilla Organization / External Link

  • Filename

    Firefox Setup 39.0.3.exe

  • MD5 Checksum

    7b61c5c46753f66af87bd68c5babb4c5

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 39.0.3.


For those interested in downloading the most recent release of Firefox (32-bit) 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 39.0.3 Screenshots

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

    Firefox 39.0.3 Screenshot 1
  • Firefox 39.0.3 Screenshot 2
  • Firefox 39.0.3 Screenshot 3
  • Firefox 39.0.3 Screenshot 4
  • Firefox 39.0.3 Screenshot 5

What's new in this version:

Various security fixes:
- Same origin violation and local file stealing via PDF reader - a way to violate the same origin policy and inject script into a non-privileged part of the built-in PDF Viewer. This would allow an attacker to read and steal sensitive local files on the victim's computer.