Many users have saved an image from the internet and found it saved with a .jfif file extension rather than the usual .jpg, this is common. JFIF — short for JPEG File Interchange Format — is a standard that defines how JPEG photos is encoded.
Essentially, a JFIF image is a JPEG file. The .jfif suffix appears primarily while saving files from specific browsers, especially if the image was served with no a proper file type header.
This file extension became visible to most people as some web browsers — particularly previous versions of certain browsers — store JPEG images with the proper .jfif file extension when the server omits the file name.
The solution is easy: either rename the extension from .jfif to .jpg, or use a converter tool to generate a correctly named JPG photo. Either way, the image data stays the same.
The easiest method is a direct file rename. For Windows users, enable file extension display in File Explorer, right-click the .jfif image, select Rename and modify the extension to .jpg.
Use alljpgconverters.com offering a completely free get more info web-based JFIF to JPG converter requiring no software needed.