Install and update | Firefox Help - Mozilla Support
https://support.mozilla.org/en-US/products/firefox/install-and-update-firefox
WEBHome. Firefox. Install and update. How to install Firefox and keep it up to date. All articles and threads. Update Firefox to the latest release. Firefox automatically updates itself by default, but you can always do a manual update. Learn how to update Firefox on Windows, Mac, or Linux. Windows 10 warns me to use a "Microsoft-verified" app.
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