What is a favicon image? What size should I use?
A favicon, also known as a favorite icon, is a small icon or collection of icons associated with a website, web page, or web application. It is usually displayed (as a small logo) on the left side of the browser's tabs and bookmarks bar.
The easiest way to do this is to use a favicon generator online as it converts your image to recommended favicon size automatically. You may use the following favicon generators online: