Mozilla Firefox

Thanks for choosing Firefox!

We’re sorry to report this, but your computer does not meet the minimum system requirements to run this version.

Need Help?

Our Support page has plenty of answers, including full instructions for downloading and installing Firefox and a live chat feature to guide you through any tricky spots.

Visit Firefox Support

For more information on supported systems

View System Requirements

To make your computer more secure, we recommend upgrading your operating system to a newer version as soon as possible (plus, you’ll be able to use Firefox!). But, if you can’t do so, here are some alternate browsers that should be compatible with your current system:

  • Opera for Windows 95 and above and Mac OS 10.3 and above
  • iCab for Mac OS 10.3 and above