You can easily upload your custom Favicon to your Blogger site.
- On the Blogger Dashboard, go to the Layout page.
- In the Theme Options section, find the Favicon box.
- Click on the Edit link to open the box.
- Click on the Browse button to upload your favicon image from your computer.
- A favicon should be a square image less than 100KB in file size.
- Once you have uploaded your image, click the Save button to save.