All browsers should have this alert

 

Seriously, I do not care if my browser passes all tests HTML5 and CSS3. For cons, I know I want some really useful features. As the alert window that warns us when we are about to enter a site with background music stressful and a button "pause" impossible to find. That is the function that Firefox should integrate.

(topsy)

Tags: alert, CSS3, window, HTML5, Web browser