Many users have saved an photo from the web and discovered it saved with a .jfif suffix in place of the standard .jpg, this happens often. JFIF — meaning JPEG File Interchange Format — is a specification defining how JPEG images is stored.
In practical terms, a JFIF file is a JPEG image. The .jfif file type occurs mainly after saving photos from certain browsers, particularly when the image comes with no a defined content-type header.
This file extension appeared to everyday users because some older browsers — especially older versions of certain browsers — download JPEG files with the correct .jfif extension when the server does not specify the download name.
Fixing this is straightforward: just rename the file extension from .jfif to .jpg, or run it through a conversion tool to create a properly labelled JPG photo. Either way, the image data stays the same.
The easiest method is a direct file rename. For Windows users, activate showing file extensions in File Explorer, right-click the .jfif image, select Rename and more info update the file extension to .jpg.
Use alljpgconverters.com offering a totally free online JFIF to JPG converter without account needed.