Here you can find the instructions on how to change the favicon for your Magento store.
- Open the Magento admin panel and select Content > Configuration in the side menu.
- In the list of stores you need click edit at Global-Main Website. Also, you can click edit for a particular store view if you have them.
- Select the “HTML Head” tab, and upload your favicon.
- Click “Save Config” button.
✓ Refresh the Magento cache.