id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
1009	Support for .jfif image files	adminusername		"The jfif format is spreading, also because some browsers and some operating systems (Windows 10) have started saving jpeg files with the jfif extension.
So you need to identify the jfif files as an image (therefore file type icon) and support this format with thumbnail, tiles and preview
ImageMagick (convert) can be used as converter (conversion tool)
"	improvement	closed	minor	8.4.2	Format Conversion	8.4	fixed	jfif