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I don't need a message to tell me the image taking up my entire screen is set to full screen. How to disable that and the slow fade when it goes fs?

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  • Dernière réponse par cor-el

dfc0972
dfc0972
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In Firefox 42

When at a site such as youtube when I make the video fullscreen it does this useless slow fade when it does so. And then tells me it's fullscreen. I know it's fullscreen for two reasons. One, I hit the fullscreen button. Two, the video is taking up my entire screen. The message serves no purpose. The fade serves no purpose. How do I disable these?

In Firefox 42 When at a site such as youtube when I make the video fullscreen it does this useless slow fade when it does so. And then tells me it's fullscreen. I know it's fullscreen for two reasons. One, I hit the fullscreen button. Two, the video is taking up my entire screen. The message serves no purpose. The fade serves no purpose. How do I disable these?

Solution choisie

To disable the fade you can modify these prefs of the about:config page.

  • full-screen-api.transition-duration.enter: "0 0"
  • full-screen-api.transition-duration.leave: "0 0"

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

I don't know of a way to disable the warning, but it might be possible to hide this message with code in userChrome.css or Stylish. This message is shown for security reasons because a malicious script can switch to Full Screen mode and take over the entire window without you noticing it (i.e. display a fake desktop).

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cor-el
cor-el
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  • Top 10 Contributor
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Solution choisie

To disable the fade you can modify these prefs of the about:config page.

  • full-screen-api.transition-duration.enter: "0 0"
  • full-screen-api.transition-duration.leave: "0 0"

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

I don't know of a way to disable the warning, but it might be possible to hide this message with code in userChrome.css or Stylish. This message is shown for security reasons because a malicious script can switch to Full Screen mode and take over the entire window without you noticing it (i.e. display a fake desktop).

dfc0972
dfc0972 Auteur de la question
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Thanks. That took care of the fade. But the message has always been optional, I've always disabled it in the past.

cor-el
cor-el
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  • Top 10 Contributor
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The DOM full screen interface has been redesigned and this feature has been removed.

  • bug 1160017 - Get rid of permission for DOM fullscreen (42+)

Please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html