How to disable continuous full screen and popup window.onbeforeunload permission?

I never want to see the permissions dialog full screen or dialog popups "are - you sure want to leave this page". They are only annoying.

You can set the pref dom.disable_beforeunload true on the topic: config page to disable this alert.

  • DOM.disable_beforeunload = true

The only choice for the permissions of full screen is "Always ask" and "Block".
You can manage permission to full screen via "tools > Page Info > Permissions" or by the subject: permissions page.

You can enable or disable this pref aimed at developers to false if you want to remove this dialog box.

  • full-screen - api .approval-required = false

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

Tags: Firefox

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