In this post, I will show you how to change default Blogger icon next to your blog name in the address bar. I know when you find this post, you are really tired of that yellow B icon. Don't worry, it's time change:
Step 1: Log in your blog Dashboard -> Layout, then edit Favicon
Step 2: upload your favorite icon
Step 3: Refresh your blog and the miracle will happen
Note: delete your browser's cache if you see no change.