Summarize the following:
It's the gear icon that's usually on the home screen. It may also be inside of a folder. It's about halfway down the menu. It's in the "General" section, which is the second section on the page. Safari will now block pop-up ads from websites. If the switch was already green, pop-up blocking is already enabled.
Open your iPhone or iPad's Settings . Scroll down and tap Safari. Slide the "Block Pop-ups" switch to On .