How to Open Proxy Settings in Firefox

Doing so will ensure that only Firefox will use the proxy server while all of your other application requests are processed through the usual web servers. This is quite useful if you don't want your proxy settings to apply to other applications like online games. Nonetheless, to configure a proxy server in Firefox, you will first need to open proxy settings. To get more news about proxy site, you can visit pyproxy.com official website.
Open Proxy Settings
It is quite simple to open up the proxy settings in Firefox. To do so, you will need to go through Firefox Settings and click on Network Settings.

Auto-detect proxy settings for this network: Firefox will automatically detect the corresponding proxy server setup in your network using Web Proxy Auto-Discovery (WPAD) protocol.
Usually, companies and institutes will use Proxy auto-config (PAC) to set a proxy for their network. (If no PAC has been set up, this setting won't connect you to any proxy server.)
Use system proxy settings: Firefox will use the proxy server that your system is currently connected to. (If no proxy has been set up for your system, this setting also won't do anything.)
Manual proxy configuration: You will need to manually enter the proxy server's IP address and port number to connect to it.
Automatic proxy configuration URL: This setting is pretty similar to auto-detect proxy settings, as it uses proxy auto-config to connect to a proxy server. However, instead of automatically detecting the proxy server, you will need to manually enter the PAC URL.
Configure Proxy Settings
There are a variety of ways you can set up a proxy server in Firefox. In the browser's proxy settings, you can choose from five different options to configure your proxy access to the internet-namely,
While the simplest method to connect to a proxy server would be using the Auto-detect proxy settings for this network settings, it is pretty situational as you will need to have PAC setup for your network.

For personal or professional use proxy setup, you can reliably connect to any proxy server using the Manual proxy configuration setting. Here's how you can do so: