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This document explains all of the settings available in Mozilla Firefox for controlling pop-ups. What are Pop-ups? Pop-up windows, or pop-ups, are windows that appear automatically without

<!-- Contributors: David Tenser (original author) Steffen Wilberg --> This document explains all of the settings available in Mozilla Firefox for controlling pop-ups. __TOC__ = What are Pop-ups? = Pop-up windows, or pop-ups, are windows that appear automatically without your permission. They vary in size but usually don't cover the whole screen. Some pop-ups open on top of the current Firefox window, while others appear underneath Firefox (pop-unders). Firefox allows you to control both pop-ups and popunders through the [[Options window - Content panel|Content panel]] in the {for win}Options{/for}{for mac,linux}Preferences{/for} window. Pop-up blocking is turned on by default, so you don't have to worry about enabling it to prevent pop-ups from appearing in Firefox. When blocking a pop-up, Firefox displays an information bar, as well as an icon {for win}[[Image:Popup-blocked-en-win.png]]{/for}{for mac,linux}[[Image:Popup-blocked.png]]{/for} in the status bar. {for win,linux}<br/> [[Image:86c0e1094489ddd5611008de57d0afed-1260046952-121-1.png]] <br/>{/for}{for mac}<br/> [[Image:popupblocker-blocked-en-mac.png]] <br/>{/for} When you click either the {button {for win}Options{/for}{for mac,linux}Preferences{/for}} button in the information bar or the icon in the status bar, a menu is displayed with the following choices: * {menu Allow/Block pop-ups for this site} * {menu Edit [[#popup_blocker_preferences|Pop-up Blocker {for win}Options{/for}{for mac,linux}Preferences{/for}…]]} * {menu Don't show this message when pop-ups are blocked} * (show the blocked pop-up) {note}'''Blocking pop-ups may interfere with some websites''': Some websites, including some banking sites, use pop-ups for important features. Blocking all pop-ups disables such features. To allow specific websites to use pop-ups, while blocking all others, you can add specific websites to the list of allowed sites. '''Blocking pop-ups doesn't always work''': Although Firefox blocks most pop-ups, some websites may show pop-ups using uncovered methods, even when blocked.{/note} = Pop-up Blocker {for win}Options{/for}{for mac,linux}Preferences{/for} = To access the Pop-up Blocker settings: # [[T:optionspreferences]] # Select the {menu [[Options window - Content panel|Content panel]]}. {for win,linux}<br/> <br/> [[Image:86c0e1094489ddd5611008de57d0afed-1260046952-121-2.png]] <br/>{/for} In the content panel: * '''Block pop-up windows''': De-select this {for win}option{/for}{for mac,linux}preference{/for} to disable the pop-up blocker altogether. * {button Exceptions}: This is a list of sites that you want to allow to display pop-ups. {for win,linux}<br/> <br/> [[Image:86c0e1094489ddd5611008de57d0afed-1260046952-121-3.png]] <br/>{/for}{for mac}<br/> <br/> [[Image:popupblocker-exceptions-en-mac.png]] <br/>{/for} The dialog has the following choices: ** '''Allow''': Click this to add a website to the exceptions list. ** '''Remove Site''': Click this to remove a website from the exceptions list. ** '''Remove All Sites''': Click this to remove all of the websites in the exceptions list. '''Note''': Blocking pop-ups may not always work and may interfere with some websites. For more information about blocking pop-ups, see [[#what_are_popups|What are Pop-ups]]. = Pop-ups not being blocked = == Is the pop-up coming from Firefox? == The pop-up may not actually be coming from Firefox. You can determine where the pop-up is coming from by the icons it has and the title at the top. * A Firefox icon and "Mozilla Firefox" in the title: keep reading below. * Everything else: you may have malware on your computer that causes the pop-ups. Scan your computer for viruses and spyware. {for win,linux} [[Image:86c0e1094489ddd5611008de57d0afed-1260046952-121-4.png|||||||||||||||]] {/for} == Is the pop-up blocker on and enabled for this site? == # [[T:optionspreferences]] # Select the {menu Content} panel. # Make sure the '''Block pop-up windows''' checkbox is checked. # To the right of '''Block pop-up windows''', click the {button Exceptions...} button. A dialog will appear that shows all the sites that are allowed to show pop-ups. # If the site that's opening pop-ups is in the list, select it and press {button Remove Site}. # {for win,linux}Click {button Close}{/for}{for mac}Close the Allowed Sites - Pop-ups window{/for}. # {for win,linux}Click {button OK}{/for}{for mac}Close the preferences window{/for}. <!-- hide this section until we can make it only hide in inproduct mode. Reason: in-product articles should not be linking to non-inproduct articles. == Check again, is the pop-up blocker on? == --> <!-- as reported: http://support.mozilla.com/tiki-view_forum_thread.php?comments_parentId=2490&topics_offset=3&topics_sort_mode=lastPost_desc&forumId=1 --> <!-- McAfee Privacy Service can disable Firefox's pop-up blocker to be able to use its own. Even if you try to turn Firefox's pop-up blocker on, the next time you open the Firefox options panel, it'll be off again. If you uninstall McAfee Privacy Service, the problem will remain. # [[T:optionspreferences]] # Select the {menu Content} panel. # If the '''Block pop-up windows''' box is no longer checked, McAfee Privacy Service may be turning it off. If you still McAfee Privacy Service installed, turn off its pop-up blocker feature and restart your computer. You should now be able to turn Firefox's pop-up blocker on. If you no longer have McAfee Privacy Service, you will need to edit your Firefox configuration file. # Open Notepad (or any other text editor). # In Notepad, browse to your [[Profiles|profile folder]] and open the {filepath user.js} file. # Erase the line that says <code>user_pref("dom.disable_open_during_load", false);</code> # Save the file. # Restart Firefox. You should now be able to turn Firefox's pop-up blocker on. --> == Is the pop-up shown after a mouse click or a key press? == Certain events, such as clicking or pressing a key, can spawn pop-ups regardless of if the pop-up blocker is on. This is so that Firefox doesn't block pop-ups that websites need to work. == Is it a true pop-up window? == Sometimes ads are designed to look like windows, but really aren't. Firefox's pop-up blocker can't stop these ads. {for win,linux} [[Image:86c0e1094489ddd5611008de57d0afed-1260046952-121-5.png|||||||||||||||||||||||||||]] {/for}