Encountering the ‘NS_ERROR_CONNECTION_REFUSED’ error in Firefox can be a frustrating experience. This error typically occurs when Firefox is unable to establish a connection to the server of the website you’re trying to visit.
Fortunately, there are several troubleshooting steps you can take to resolve this Firefox browser issue.
Understanding NS_ERROR_CONNECTION_REFUSED Error on Firefox Browser
Before diving into ‌solutions, it’s important to understand what causes this error. The ‘NS_ERROR_CONNECTION_REFUSED’ error usually indicates that something on your end is preventing Firefox from accessing the website.
This could be due to issues with your internet connection, browser settings, security software, or even problems with the website itself.
Troubleshooting Steps to Fix Firefox Browser Error NS_ERROR_CONNECTION_REFUSED
Check Your Internet Connection
Start by ensuring your internet connection is stable and working properly. Try accessing other websites or using a different browser to see if the problem is isolated to Firefox.
Examine Security Software Settings on Firefox
Security software like antivirus programs or firewalls can sometimes block web browsers from accessing certain websites. Ensure that Firefox is allowed through your firewall and isn’t being blocked by any other security software you might have installed.
Adjust Firefox Connection Settings
If you’re using a proxy server, check Firefox’s connection settings. Incorrect proxy settings can prevent Firefox from accessing the internet.
- Go to Firefox’s Network Settings.
- Ensure your proxy settings are correctly configured.
Clear Firefox Browser Cookies and Cache
Outdated or corrupt cookies and cache can lead to connection errors. Clear your Firefox cookies and cache to see if this resolves the issue.
Disable IPv6 on Firefox Browser
IPv6 compatibility issues can sometimes cause connection problems.
- To disable IPv6 in Firefox, type ‘about:config’ in the address bar.
- Search for ‘network.dns.disableIPv6.’
- Change its value to true.
Turn off Firefox DNS Prefetching
DNS Prefetching is designed to speed up the loading of websites, but it can cause issues in some cases.
- Disable this feature by typing ‘about:config’ in Firefox’s address bar.
- Then search for ‘network.dns.disablePrefetch’ and set it to true.
Check Firefox Browser for Malware
Malware can interfere with your browser’s ability to connect to the internet. Ensure that you run a full system scan regularly using your antivirus software to ensure your system is clean.
Investigate Firefox Browser Extensions
Sometimes, browser extensions can cause conflicts or block connections. Check your Firefox extensions by disabling them one by one to see if any of them are causing the problem.
Other General Solutions to Resolve NS_ERROR_CONNECTION_REFUSED on Firefox
- Restart Your Router
This can resolve issues with your home network that might be affecting your browser. - Check Proxy Settings
If you’re using a proxy, ensure its properly configured and functioning. - Disable Antivirus and Firewall Temporarily
Sometimes, these can incorrectly block legitimate websites. - Flush DNS Cache
This refreshes your DNS settings, which can resolve connection issues. - Change DNS Server
Switching to a different DNS server like Google’s (8.8.8.8 and 8.8.4.4) can sometimes help.
To fix the ‘NS_ERROR_CONNECTION_REFUSED’ error in Firefox, try these simple steps: Make sure your internet works by trying other websites or a different browser. Check your browser and security settings, and make sure your computer does not have any viruses.
If you follow these steps carefully, you can find and solve the problem. If you still can’t fix it, you might want to ask your internet service provider (ISP) for help or talk to a tech expert.
