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Ask the CommunityLearn 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.
If a website requires a secure connection that cannot be established, Firefox will not connect and will show you an error page. Learn 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.
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