Pop-up blockers are programs that prevent pop-up banners from appearing. Most browsers offer the pop-up blocker function.
Pop-up blockers can functionally work in different ways. There are those that close the window before the pop-up banner appears, and others that block the program command for the pop-up. In addition, there are programs that detect pop-up window blocking and switch another online advertising format instead of the pop-up b anner.