If you have ever saved an photo from the internet and found it downloaded with a .jfif suffix in place of the standard .jpg, this is common. JFIF — short for JPEG File Interchange Format — is a standard that defines the way JPEG photos is saved.
In practical terms, a JFIF file is a JPEG photo. The .jfif suffix shows up primarily while saving photos from certain browsers, particularly when files are is delivered without a proper file type header.
This file extension became visible to most people since some browsers — mainly legacy versions of Microsoft Edge — download JPEG images with the proper .jfif extension when the server fails to specify the filename.
The fix is simple: simply rename the file extension from .jfif to .jpg, or use a converter tool to generate a properly labelled JPG photo. In both cases, the check here photo content remains unchanged.
The quickest fix is a simple rename. For Windows users, turn on file extension display in File Explorer, right-click the .jfif image, select Rename and update the extension to .jpg.
Try alljpgconverters.com for a totally free browser-based JFIF to JPG tool requiring no software needed.