Windows 10 已于2025年10月14日停止支持。如果您正在使用 Windows 10，参见 这篇文章。

Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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已解决 已存档

Disable popup "YouTube.com is now fullscreen. Press Esc at any time to exit"

Firefox 隐私与安全
sludge7051-x 已回复
sludge7051-x
sludge7051-x

How to disable this message: "YouTube.com is now fullscreen. Press Esc at any time to exit"

Open a new tab. Enter the following in the address bar: about:config

Enter the following in the filter box: full-screen-api.approval-required

Double-click to set the parameter to false

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How does this message help anyone?

If this is a security feature, the idea is to prevent an un-authorized fullscreen mode.

I clicked to make it full screen!

How to disable this message: "YouTube.com is now fullscreen. Press Esc at any time to exit" Open a new tab. Enter the following in the address bar: about:config Enter the following in the filter box: full-screen-api.approval-required Double-click to set the parameter to false - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - How does this message help anyone? If this is a security feature, the idea is to prevent an un-authorized fullscreen mode. I clicked to make it full screen!

所有回复 (2)

guigs
guigs

选择的解决方案

You may submit feedback directly to the Advocacy team through the following page:

The User Advocacy team reviews all feedback and reports on the findings to the product teams and relevant parties, helping to influence and shape our products.

sludge7051-x
sludge7051-x 提问者

Done. Thank you!