dom.disable_window_open_feature.titlebar.dom.disable_window_open_feature.scrollbars.dom.disable_window_open_feature.resizable.dom.disable_window_open_feature.personalbar.dom.disable_window_open_feature.minimizable.dom.disable_window_open_feature.location.address bar, scroll bars, etc.) from being disabled when set to true. This setting is equivalent to the Block pop-up windows UI option.ĭescription Determines whether windows can be focused through JavaScript.ĭescription Determines whether windows can be moved or resized using JavaScript.ĭescription Rather than a single preference, this is a set of different boolean settings which can prevent a specific pop-up feature (e.g. Obsolete, just leave it as-is.ĭescription Handles pop-ups according to the current pop-up blocker settings when created through a JavaScript timing event using a delay smaller than this value (in milliseconds).ĭescription When enabled, blocks pop-ups created while the page is loading. width, height) into tabs.ĭescription Determines whether to show an icon in the status bar when a pop-up has been blocked. 2 - force windows that don't specify their features (e.g.0 - always force new windows into tabs.1 (or anything else) - open in the current tab or window.Įnabling or disabling the Open new windows in a new tab instead UI option will toggle this preference between 3 and 2.ĭescription Restricts all new windows opened by JavaScript.Here's a comprehensive list I've come up with:ĭescription Controls where to open links that would normally open in a new window. ![]() Source: about:config Pop-up related preferences The search bar is case-insensitive, unlike the actual configuration variables. You can use the Search bar at the top of the about:config page to filter the preferences that you want to inspect. To reset a preference to its default value or to remove an added preference, context-click (right-click) on the preference and select Reset. To modify an existing preference, context-click (right-click) on the preference, select Modify and type in the new value. In the context menu, select New then select the type of preference you are adding. To add a new preference, context-click (right-click) anywhere in the list of preferences. Use the checkbox there to avoid the warning in the future. If you see a page with the warning message, "This might void your warranty!", click the button labeled "I'll be careful, I promise!", to continue (in fact, there is no warranty whatsoever, it's more a joke to ensure that users are aware of what they are about to do). In Firefox, type about:config in the Location Bar (address bar) and press Enter to display the list of preferences. Instead of directly editing this file, recent Mozilla applications include a configuration editor that can be accessed from the application interface. Preference settings that are modified from default values are saved in the prefs.js file. Many settings, especially the most advanced ones, are not present in the User Interface (UI) options dialog. Maybe I'm using the wrong option to disable popups? What does this option that I turned on actually do? I sometimes even get pages that show 4-10 popup windows. Also this page shows a popup when I click on the description or file name. For example this page just showed a popup window when I clicked on the description. So it doesn't seem to be a malware issue.Īll these years, I always checked the "Block pop-up windows" button:īut it seems this doesn't do what I want it to. I've heavily used some 40 computers over the last years, all with various versions of Linux and Windows, and in various locations (home/work/school) and I've always had the same problem. I find the dominating time I waste during any day is on closing popup windows. I used to just disable JavaScript, which seemed to work (at least for sites that don't need JavaScript), but new versions of Firefox remove that feature. ![]() ![]() I am now using Firefox 24.2.0 on Linux without Flash or Java. For the past 5-10 years or so, I've been using Firefox, and I've never found out how to properly disable popups.
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