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Want Firefox preferences on mac to appear as OS window not browser window

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  • 2 have this problem
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  • Last reply by cor-el

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I do not want Firefox preferences to open in a browser window, but to open as an OS X Preferences window. There was a fix where changing about:config?filter=browser.preferences.inContent from true to false would return the Firefox preferences to a Mac OS window. Suddenly today the preferences started showing up in a browser window again yet the config is set to false. How can I get Firefox to go back to displaying the Preferences in an OS X window? Thanks.

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The browser.preferences.inContent is no longer supported in Firefox 42 and later, so it is not possible to open a standalone window by setting this pref to false. Bug 1140495 - Remove support for windowed preferences

You can possibly create a button on the Bookmarks Toolbar to the about:preferences page and hold the Shift key and left-click to open the page in a new window.

You can look at the Classic Theme Restorer extension.