Our technology blocks ads before they're displayed by blocking the requests. In case something goes through we also have failsafe JS and CSS to remove ads You may disable AdBlock Unicorn at any time by using the toggle button after clicking on the icon. AdBlock Unicorn checks for custom script in our server to make sure we add all the latest critical ad blockings that cannot wait until the next Chrome store update which sometimes take multiple days. Please visit our website and send us your feedback and suggestions on how to make our product better and cuter ! FAQ : Q : Do you block video ads on Youtube and Facebook ? A : Not at the moment, we are working on it