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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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Update Firefox to the latest release

What Windows 10 end of support means for Firefox users

Install Firefox on Linux

Firefox support for Windows 7, 8 and 8.1

How to install Firefox on Windows

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

How to download and install Firefox on Mac

Firefox security features warning on Linux

Find what version of Firefox you are using

Uninstall Firefox from your computer

Manually back up and restore Firefox profile data

Custom installation of Firefox on Windows

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

Firefox has ended support for Windows XP and Vista

Run Firefox on ChromeOS

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

Download Firefox on Windows from the Microsoft Store

I found a fake Firefox update

Switch from Chrome to Firefox

Troubleshoot Firefox updates and the Helper tool

Recover user data missing after Firefox update or reinstall

Install an older version of Firefox

Importing Safari data into Firefox

Windows in S mode won't let me install Firefox

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

What is the Mozilla Maintenance Service?

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

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

How the Firefox desktop launcher works

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

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

Firefox update notifications on Windows

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

Firefox has ended support for 32-bit Linux

Fix “Support ending for Intel-based Apps” warning in Firefox for macOS

Firefox release notes - What's new and known issues

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