If the LAN settings are set to the required parameters, check if your browser’s proxy settings have been altered. Reboot your computer and launch Firefox to check if the site loads correctly or not. Under Connections, click on LAN Settings to check if your system is using any proxy settings under the Proxy server heading. That will open a pop-up window for Internet Properties. To check LAN proxy settings on Windows 10, hit the Windows button on your keyboard and type Configure Proxy Server before hitting the Enter key. Let’s take a look at some solutions and methods that will help you fix the proxy server connection error. It is also possible that the webpage/website is itself at fault, and in that case, I can’t help you. It can be adware or malware, an error in your LAN settings or Firefox’s proxy settings itself. There can be multiple reasons behind why the webpage that you are trying to access won’t open without a hassle.
Have you been hit with the dreadful 'The proxy server is refusing connections' error on your Firefox browser lately? This error is mostly seen on either Mozilla’s Firefox browser, or occasionally on the anonymity offering TOR browser.
