what is that picture thingy in the url line called?

One of my projects for today is to use my image above to replace the Blogger image in the address bar before where it says http://elaineperlov.blogspot.com/. Can I do it? I think I should consult the Magic Eight Ball. It answered, "My sources say no." Well that doesn't seem promising.***I read that it is called a favicon, which is short for favorites icon, and you can go to favicon.com to upload