Does "youtube.com is now fullscreen" bug you?

[Mace Canute]

It's easy to get rid of the notification by entering about:config in address-bar then click on I'll be careful, I promise! and scroll down to full-screen-api.approval-required and change it from true to false by double clicking on the line or the word true.

Edited to add: I should have said that this works for Firefox, I'm not sure about other browsers.

 

[davesl708]

I have never had that notification in IE.