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What are Popups?

Popup windows, or popups, are windows that appear automatically without your permission. They vary in size but usually don't cover the whole screen. Some popups open on top of the current Firefox window, while others appear underneath Firefox (popunders).


Firefox allows you to control both popups and popunders through the Content panel in Options Preferences.
Popup blocking is turned on by default, so you don't have to worry about enabling it to prevent popups from appearing in Firefox.

When blocking a popup, Firefox displays an information bar, as well as an icon in the status bar. When you click either the OptionsPreferences button in the information bar or the icon in the status bar, a menu is displayed with the following choices:

* Allow/Block popups for this site
* Edit Popup Blocker
* Don't show this message (info message) when popups are blocked

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.

Blocking popups doesn't always work: Although Firefox blocks most popups, some web sites may show popups using uncovered methods, even when blocked.

popups