If you have ever downloaded an picture from the online and noticed it appeared with a .jfif file extension in place of the usual .jpg, this happens often. JFIF — short for JPEG File Interchange Format — is a specification defining how JPEG image data is stored.
In practical terms, a JFIF photo is a JPEG photo. The .jfif file type shows up mainly when saving images from certain browsers, mainly when files are is delivered lacking a specific MIME type.
JFIF files appeared to regular users because some older browsers — mainly legacy versions of Microsoft Edge — download JPEG files with the correct .jfif extension when websites fails to specify the filename.
The fix website is simple: just rename the file extension from .jfif to .jpg, or process it with a online converter to produce a standard JPG image. In both cases, the picture quality does not change.
The quickest fix is a simple rename. On Windows, activate showing file extensions in File Explorer, click the .jfif file, choose Rename and update the file extension to .jpg.
Visit alljpgconverters.com for a totally free browser-based JFIF to JPG solution with no download required.