This short tutorial is about the steps required to enable or disable pop-up blocker in Safari browser on iPhone 4S. The pop-up blocker can be controlled using the option available as part of the Safari settings.
Step 1: Press the menu button on iPhone 4S to access the Home screen.
Step 2: Tap the settings on the Home screen.
Step 3: In the Settings view, tap the Safari option.
Step 4: Scroll down to Safari settings screen then you can turn on or off using the Block Pop-ups switch option.