How to set up a proxy server on Android?

• Install Firefox on the device (Google Play)
• Open the browser and enter: about:config in the address field
• Then search: network.proxy.type and set the value to 2
• The next parameter to set is: network.proxy.autoconfig_url
• Enter: http://wpad.ue.katowice.pl/proxy.pac
• To check whether the configuration is correct, go to: www.bg.ue.katowice.pl.

If the browser is configured correctly, the login window will be displayed.