Headless is a browser which does not have a GUI. A headless browser runs a testing script even though when there is no browser installed on our system such as we need the latest version of Firefox Browser to test website but the latest version is not available in the system then we can take help of the headless browser because most of the headless browsers support all browser versions. When the script is running then we do not see the browser but we will get the result of a script in the console.










