Certain Windows Creators Updates and browser updates in Chrome or Edge can default to saving JPEG images as .jfif .
You can right-click the file, select "Rename," and change the extension from .jfif to .jpg . How to Convert JFIF to JPG Download images jfif
Use free services like FreeConvert.com or CloudConvert to upload and convert files. Certain Windows Creators Updates and browser updates in