Many users have stored an picture from the web and noticed it saved with a .jfif extension rather than the expected .jpg, this is common. JFIF — which stands for JPEG File Interchange Format — is a specification that defines the way JPEG photos is saved.
Essentially, a JFIF file is a JPEG file. The .jfif file type shows up mostly when saving photos from specific browsers, particularly when files are was served lacking a proper content-type header.
This file extension started showing to everyday users because some web browsers — mainly older more info versions of Internet Explorer — store JPEG files with the proper .jfif extension when the server fails to specify the file name.
Fixing this is straightforward: either rename the file extension from .jfif to .jpg, or run it through a online converter to create a correctly named JPG photo. In each case, the photo content stays the same.
The simplest approach is a direct file rename. On Windows, enable showing file extensions in File Explorer, right-click the .jfif file, select Rename and change the file extension to .jpg.
Use alljpgconverters.com offering a 100 percent free online JFIF to JPG tool with no software required.