A favicon is the small icon that represents your store in the browser. It commonly appears in:
Browser tabs
Bookmarks / favorites
Some browser history and shortcut areas
Adding a favicon helps customers recognize your brand and makes your storefront look more professional.
Go to Online Store → Themes.
Click Customize on the theme you want to edit.
In the left sidebar, open Theme settings.
Select Favicon.
Under Image, click Select.
Choose an existing image from your library or Upload a new one.
Click Save.
Format: PNG
Recommended size: 180 × 180 px (square)
Theme behavior: the image will be scaled down to approximately 90 × 90 px
Best practice: use a simple, high-contrast logo; transparent background is recommended if it fits your branding.