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A Complete Guide To Resolve Firefox Proxy Server Error In No Time

While the users are accessing Firefox, they might often encounter Firefox proxy server error message that appears on the display screen. This Proxy Server error is quite annoying among the Firefox browser users. 

There are various causes for which the users generally face such kind of error on their device. But, mostly this error appears when the users have an incorrect or wrong proxy configuration. Besides, this error can also occur when they use some VPN service on their device.

Some of the affected users claim that they find this error when their computer becomes corrupted due to the malware or virus infection. This might change something in the internal settings. Sometimes, it is also seen that Windows Firewall and antivirus software create this proxy server error. 

If you are experiencing the same proxy server error, then a query arises that how you can settle this proxy server error? If this is the case with you, then without worrying much, go through this entire article. Here we are going to mention some of the reliable troubleshooting methods which will help you to sort out this matter in no time. 

Firefox Proxy Server Error: Some Effective Troubleshooting Methods to Fix This Error

Mozilla Firefox is one of the most necessary applications for several people. Therefore, if there any issue arises in this browser, the users fail to access Firefox. That’s why resolving such Firefox related error is quite important. 

Here, in this section, we are going to discuss some significant solutions by which you will surely fix this mater on your own.

Private Network: Set to No Proxy

If you are using Firefox on LAN, then Firefox proxy server error is pretty common. In such a situation, you need to do the following:

Primarily, verify that your LAN settings are accurate. Launch the Firefox and then navigate to the Settings section. Here, you need to scroll down and select the Network Settings. After that, tap on the Settings. This process will open the Connection Settings menu. 

If you use the Firefox inside your Private home network, then you don’t need any proxy server configuration. Simply set the Firefox defaults to “Use System Proxy Settings.”

But, in case, your computer proxy settings are wrong or incorrect, then you might need to reset the Configure Proxy Access to the Internet setting to No proxy.

This assures that web traffic is reaching out straight to the internet and not trying to connect to any proxy servers. Reboot the Firefox as well as your PC to ensure that the proxy server issue gets removed.

Verify PC’s LAN Proxy Settings

If your Internet Service Provider uses a proxy server, then you should verify whether the proxy settings have been changed for certain reasons on your device. 

You can verify the proxy settings by tapping on the Start menu and then write “Configure Proxy Server” into the search field and hit the Enter key or click on the OK button. Now, navigate to the Connections tab and tap on the LAN Settings.

Here, in this window, you need to set the settings as “Automatically Detect Settings” But, on any network where an Internet Service Provider needs a proxy server, there are two options:

Either Use a proxy server for your LAN will be selected and filled in or Use automatic configuration script. The Port and Address fields should be filled with the proxy server details. 

Automatic Configuration: 

If your Internet Service Provider uses Automatic settings, then in the Use automatic configuration script, you will see the Address field has already filled. Here, you need to tap on the Checkbox. 

Proxy Server: 

If your Internet Service Provider uses a particular proxy server, then in the Proxy Server section, you find that the Port field and Address field has been already filled. Here, you need to locate and select the “Use Proxy Server For Your LAN” option and mark the checkbox. 

No Proxy: 

If your Internet Service Provider uses an Automatic configuration, then you have to locate the “Automatically Detect Settings” option. Once you find it, simply click on it to mark the checkbox.

Reset Network Settings

If the above two setting changes don’t help you out, then your device might require network settings reset. To do so, you can follow the steps below:

At first, tap on the Start menu and then write “cmd” into the search field and hit the Enter button or choose the OK button. After that, right-click on the Command Prompt and then, choose the “Run As Administrator” option from the resultant menu list. Next, enter the following commands in the Command Prompt window and hit the Enter key after executing each command.

  • Firstly, netsh int ip reset
  • Then, netsh Winsock reset
  • After that, netsh winhttp reset proxy

This action will surely reset the winhttp and Winsock settings as well as the network interface. If malware or virus infection makes any changes on your device, then this process will get it back to its normal state.

Once you are done with all the above steps, reboot your device and check whether the proxy server error gets terminated from your device.

Edit the Windows Registry Entries

Firstly, go to the Start menu and then enter “regedit” int the Run dialog box and press the Enter key or click on the OK button. Now, you need to go to the following path: 

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings.

Before proceeding with the below-highlighted steps, tap on the Settings and then make a backup of all the important data and files. While editing the Windows registry entries, if anything goes wrong, then you can easily recover it by using these backup keys.

Now, in the Proxy Settings, search for any components that contain the word Proxy. You have to remove them from the proxy settings window.

Go to the Internet Settings folder and press the Ctrl key along with the F function key and go through further instruction to complete the process.

When it is done, restart your device. Once your device restarts, check if the proxy server error has been resolved.

Check for Malware or Virus

It’s the worst scenario, where your device has been infected by malware or virus that triggers the Firefox proxy server error. At his point, you can use the Windows Defender which is the built-in antivirus tool.

To scan your entire device, you need to click on the Start menu and then navigate to the Settings. Here, in the Settings window, locate and select the “Update And Security” option. After that, click on the Windows Security. Here, in this section, choose the Virus And Threat Protection option and switch the Real-Time Protection to On.

Once you perform this action, Windows Defender will scan your entire device and look for the malware or virus infected files and folders. Once it finds, Windows Defender will automatically repair them. 

But, if you have any third party anti-virus software installed on your device, then you can also use that software.

Concluding Remarks

We hope that this article will be useful for you to resolve such kind of Firefox proxy server related issues. But, if you want to know more about this error, then you can write up your doubts in the comment section below. We will revert you back as soon as possible. Moreover, you can also opt for expert assistance.