Updating from a previous version?
If you are upgrading from a previous version of Firefox, see Update Firefox to the latest release.
Click on the operating system on which you are installing Firefox.
How to install Firefox on Windows
How to download and install Firefox on Mac
Install Firefox on Linux
Install Firefox on an Android device using Google Play
Apple's restrictions prevent us from distributing Firefox for iOS devices (iPhone, iPad, iPod Touch).
Based on information from Installing Firefox (mozillaZine KB)
Windows and the Windows logo are trademarks of the Microsoft group of companies.
Mac® and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries.
Linux® is the registered trademark of Linus Torvalds in the U.S. and other countries.
The Linux logo is Copyright 1997 Larry Ewing
The Android logo is based on work created and shared by Google.
