Firefox Edge Browser Error Code NS_ERROR_NET_RESET: How to Fix It

Easy 15-30 minutes Medium Severity Verified June 2026
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Error Code
NS_ERROR_NET_RESET
Brand
Firefox Edge
Product Type
browser
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
15-30 minutes
The NS_ERROR_NET_RESET error in Firefox means the browser established a connection to a server, but that connection was abruptly closed or reset before the page could fully load. This typically happens due to network interruptions, misconfigured browser settings, overly aggressive security software, or server-side issues on the website you are trying to reach. In most cases, this is a software or network configuration problem you can resolve yourself without any specialized tools.
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Tools You'll Need

How to Fix Error Code NS_ERROR_NET_RESET

  1. Reload the Page and Check Your Internet Connection

  2. Disable VPN or Proxy Services

  3. Clear Firefox Cache and Cookies

  4. Disable Browser Extensions

  5. Temporarily Disable Antivirus or Firewall Software

    Only disable security software briefly for testing. Re-enable it as soon as your test is complete to protect your device.

  6. Flush DNS Cache and Reset Network Stack

    Run Command Prompt as an administrator only. Resetting the network stack requires a system restart to take full effect.

  7. Change DNS Server Settings

  8. Disable IPv6 in Firefox

  9. Reset Firefox to Default Settings

    A Firefox refresh removes installed extensions and custom settings. Back up any important data such as saved passwords using Firefox's export feature before proceeding.

  10. Test in Another Browser and Check the Website

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When to Call a Professional

Contact your Internet Service Provider (ISP) if flushing DNS, resetting your network stack, and rebooting your router do not resolve the issue, as there may be a problem with your ISP's infrastructure or your home network hardware. If you are on a corporate or school network, contact your IT department, as firewalls or network policies may be blocking the connection. If the error appears only on a specific website, the website owner or their hosting provider needs to investigate a server-side reset issue.

Frequently Asked Questions

What causes NS_ERROR_NET_RESET in Firefox?
NS_ERROR_NET_RESET occurs when a network connection to a server is established but then suddenly dropped or reset before the page finishes loading. Common causes include unstable internet connections, VPN or proxy conflicts, overly aggressive antivirus or firewall software, corrupted browser cache, outdated Firefox settings, or the target website's server resetting the connection unexpectedly.
Does NS_ERROR_NET_RESET mean the website is down?
Not necessarily. While a server-side issue can cause this error, it is more commonly caused by your local network configuration, browser settings, or security software. Try visiting the same site in another browser. If it loads fine there, the issue is with Firefox or your network settings rather than the website itself. You can also check the site status on a tool like downdetector.com.
Why does NS_ERROR_NET_RESET only happen on certain websites?
Some websites use specific protocols, ports, or security configurations that conflict with your browser settings, firewall rules, or ISP policies. Certain ISPs also throttle or block traffic to particular servers. If the error is site-specific, try disabling your VPN or proxy, clearing cache, and checking if your antivirus is blocking that specific domain. If the issue persists only for one site, the problem may be on their server.
How do I fix NS_ERROR_NET_RESET on Windows 10 or Windows 11?
Open Command Prompt as an administrator and run the commands 'ipconfig /flushdns', 'netsh int ip reset', and 'netsh winsock reset' one at a time. Restart your computer afterward. Also check your Windows Firewall settings to ensure Firefox is listed as an allowed app under 'Allow an app through Windows Firewall' in the Control Panel. Updating Firefox to its latest version is also recommended.
Will refreshing Firefox delete my bookmarks and passwords?
Refreshing Firefox through the built-in 'Refresh Firefox' option in the Troubleshooting Information page removes extensions, themes, and some customized settings, but it preserves your bookmarks, browsing history, saved passwords, and open tabs. It is a safe last-resort option for resolving persistent browser errors. You can also export your bookmarks and passwords before refreshing as an extra precaution.

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