FireFox Browser
Before configuring, please Get Proxy first
Step 1:Open the Firefox
Step 2. Click Set icon> Settings (or Preferences on macOS).
Step 3:Click on the General tab.
Step 4:Scroll down to the Network Proxy section, and then click Settings.
Step 5:Select the manual proxy configuration box.
Step 6:Add the ip address or host address and the port to the HTTP proxy field. Select to also use this proxy for the FTP and HTTPS check boxes.