There are million of guides in the Internet on how to correct this stupid default behavior that happens in Microsoft Edge nearly every time and in Google Chrome from time to time. But all these solutions requires you to read through long block of text or watch 2-3 minutes long video while solution is actually ultra-fast.
- Start > type
regedit> hit Enter
Computer\HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/jpegto address bar > hit Enter
- Double click on Extension > paste
.jpg> hit Enter
And… you’re done! Restart Edge to see the effects. No more .jpg files saved with stupid .jfif extension.