Controlling Pop-Ups with MozillaSome people do not want pop-up and pop-under windows. However, some sites provide some of their functionality in pop-up windows. For instance, a site might provide their login page in a pop-up window or allow printing through a pop-up window. Mozilla allows you to block pop-up windows. It also allows you to set up a list of sites that are exceptions to the pop-up blocking.To configure pop-up settings, click Edit and select Preferences. Expand Privacy and Security (click +). Click Popup Windows. The window in Figure 15-6 opens. Figure 15-6. Mozilla pop-ups.![]() |