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Secondary display getting blacked out

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  • Last reply by cor-el

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Hi. I used to be able to maximize (fullscreen) a Firefox window in either my main display or my connected external display and the unused display would remain available. As of the last update the unused display is being blacked out. How can I revert this so I can use the other display? I have already tried turning hardware acceleration off and back on and it still does not work.

Hi. I used to be able to maximize (fullscreen) a Firefox window in either my main display or my connected external display and the unused display would remain available. As of the last update the unused display is being blacked out. How can I revert this so I can use the other display? I have already tried turning hardware acceleration off and back on and it still does not work.

mau21c1o modificouno o

Chosen solution

You can try to toggle this pref in about:config via a double-click on its line, you can use the search bar at the top of the page.

  • about:config => full-screen-api.macos-native-full-screen

More info:

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Chosen Solution

You can try to toggle this pref in about:config via a double-click on its line, you can use the search bar at the top of the page.

  • about:config => full-screen-api.macos-native-full-screen

More info:

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