Pop-up windows, or popups, are windows that appear automatically and without your permission. They vary in size, but usually don't cover the whole screen. Some popups open on top of the current Navigator window, thus popping up, while others appear underneath Navigator (popunders).
Mozilla allows you to control both popups and popunders through the Popup Windows preferences panel. Since popup blocking is turned off by default, you must enable it to prevent popups from appearing in Navigator.
When blocking a popup, Mozilla can be set up to play a sound,
as well as display an icon
in the status bar. You can use this icon to add a web site you're viewing to
an exceptions list so that the site is allowed to again display popups.
Blocking popups may interfere with some web sites: Some web sites, including some banking sites, use popups for important features. Blocking all popups disables such features. To allow specific web sites to use popups, while blocking all others, you can add specific web sites to the list of allowed sites. For more information, see Privacy & Security Preferences - Popup Windows.
Blocking popups doesn't always work: Although Mozilla blocks most popups, some web sites, even when blocked, may use other methods to show popups.
Allowing popups from certain web sites: After you've enabled popup blocking, you can still allow specific sites to display popups. Browse to the web site, and then from the Tools menu, choose Popup Manager, and then choose Allow Popups From This Site.
The next section describes how to control popups through preferences and through the popup control icon.
This section describes how to use the Popup Windows preferences panel. If you're not already viewing it, follow these steps:
To control popups, you can:
Note: After the popup control icon
appears, it remains visible until you visit another web site.
Using the popup control icon to add allowed web sites: You can use
the popup control icon to quickly add a web site to the list of allowed web sites. Click the
icon to open the list of allowed
web sites. The current web site is already filled in. Click Add and then click OK to confirm
your addition.
Note: Blocking popups may not always work and may interfere with some web sites. For more information about blocking popups, see Controlling Popups.
24 September 2003
Copyright 1998-2003 The Mozilla Organisation.