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

Installation and updates

Install

Learn about how to install Mozilla’s products on your devices.

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How to download and install Firefox on Mac

How to install Firefox on Windows

Run Firefox on ChromeOS

Troubleshoot Firefox updates and the Helper tool

Switch from Chrome to Firefox

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

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