Make your stupid icon.
Rename the stupid .png to .ico
<link rel=”shortcut icon” href=”favicon.ico” type=”image/x-icon” />
There is no step four, it’s that easy.
To all the people who made long elaborate tutorials on how to make a favicon. You suck. Next time lead with “there is no fancy export function, you just rename the file, with your keyboard.” HOURS of my time wasted.