I use usb data card to connect to internet and use firefox to access internet.
In Firefox -> Tools -> Options -> Advanced-> Network -> Connection -> Setting it says:
Configure how firefox connects to the internet
Configure proxies to access the internet:
manual proxy etc
I want to understand the workflow, when and at what step, is this proxy comes into picture and what are their roles.
In such my home setup, what should be this setting? What proxy I am using here? and What is this setting typically in office environment?