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Learn how Firefox will continue supporting Windows 10 after Microsoft ends its updates, and discover the steps Mozilla recommends to keep your browsing experience secure.
Learn how to activate and use the built-in VPN feature in Firefox to protect your browsing.
Learn how to access and adjust Firefox settings, including privacy, startup behavior, downloads and more.
If you can't connect to a website, you may see the Server Not Found error message. Learn how to troubleshoot and fix this error.
