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Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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Installation and updates

Installation and updates

Learn how to install your favorite Mozilla products and keep them updated.

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What Windows 10 end of support means for Firefox users

Update Firefox to the latest release

Install Firefox on Linux

How to install Firefox on Windows

Windows 10 warns me to use a "Microsoft-verified" app

Firefox support for Windows 7, 8 and 8.1

Firefox security features warning on Linux

Find what version of Firefox you are using

How to download and install Firefox on Mac

Back up and restore information in Firefox profiles

Custom installation of Firefox on Windows

Download Firefox on Windows from the Microsoft Store

Uninstall Firefox from your computer

Firefox has ended support for Windows XP and Vista

Firefox users on macOS 10.12, 10.13 and 10.14 moving to Extended Support Release

I found a fake Firefox update

Enable background updates on Firefox for Windows when Firefox is not running

Switch from Chrome to Firefox

Run Firefox on ChromeOS

Recover user data missing after Firefox update

What is the Mozilla Maintenance Service?

How the Firefox desktop launcher works

Troubleshoot Firefox updates and the Helper tool

Install an older version of Firefox

Firefox has ended support for 32-bit Linux

Importing Safari data into Firefox

Windows in S mode won't let me install Firefox

Update Firefox to prevent add-ons issues from root certificate expiration

Resolve “The installation seems to be incomplete/corrupt” error in Firefox on Windows

How do I tell if I have the 32-bit or 64-bit Firefox?

64-bit Firefox crashes with Citrix's XenApp VM

Supported platforms and system requirements

Firefox Mac OS X 10.9, 10.10 and 10.11 users move to Extended Support Release

Solutions for "Can not create temp folder archive" error when installing Firefox (Windows 10)

Firefox update notifications on Windows

Why do I get a harmful download message when downloading Firefox on Windows?

Firefox release notes - What's new and known issues

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