Many users have stored an image from the internet and found it downloaded with a .jfif extension instead of the expected .jpg, you are not alone. JFIF — meaning JPEG File Interchange Format — is a format which defines the way JPEG images is saved.
In practical terms, a JFIF file is a JPEG photo. The .jfif file type shows up mainly when saving images from certain browsers, mainly when files are is delivered without a proper MIME type.
This file extension more info appeared to everyday users as some web browsers — particularly older versions of certain browsers — store JPEG images with the proper .jfif extension when the server omits the file name.
The fix is simple: just rename the file extension from .jfif to .jpg, or run it through a conversion tool to produce a standard JPG image. In both cases, the picture quality does not change.
The quickest fix is a simple rename. For Windows users, turn on file extension visibility in File Explorer, click the .jfif file, choose Rename and change the extension to .jpg.
Use alljpgconverters.com providing completely free web-based JFIF to JPG converter without software needed.