A favicon is the name of the small image that appears in your browser's tab for every website you visit.
Upload a New Favicon
1. Navigate to the Design panel and click on the Sitewide tab on the top right-hand corner of the page. From there, you will select Header & Logo.
2. Once in the Header & Logo, scroll down to Favicon.
3. Drag in your favicon PNG file or click to upload your favicon under Image.
This icon must be in PNG format and have a minimum of 256 pixels and a maximum of 512 pixels per side. Transparency is allowed.
4. Click Save and then Publish and you will see your new favicon on your live website!