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Ticket Information - ID: #893

ID:Category:SeverityReproducibilityDate SubmittedUpdated By:
0000893Bug Reportingnormalalways06/09/17 10:55AMOwyn
Assigned to:lozertuser
View StatusPublic
Target Version:
Summary:.jfif extension
Description:Since firefox saves images by server response now if you drag an image to your desktop or folder you'll get .jfif extension of it...

could you bring .jpg back pls?
Additional Info:
Jerl replied at 2017-06-09 18:26:33
That sounds like a Firefox issue, not an issue with the site. I've never had it save files as anything but their actual extension.

lozertuser replied at 2017-06-09 21:34:36
What OS are you running and browser version?

Owyn replied at 2017-06-10 20:35:32
Win 10, FireFox 53
example url:

Jerl replied at 2017-06-11 10:32:48
Using Windows 8 and Firefox 53. Dragging that image to the desktop saved it as a .jpg. From what I can tell, this is an issue with your browser and/or OS.

Owyn replied at 2017-06-11 18:43:34
It's not like browser or OS gonna MAKE UP .jfif extension

Tested with clean profile via firefox profile manager

Jerl replied at 2017-06-13 10:09:38
First of all, it didn't "make up" the extension; it's a legitimate extension for JPEG images:

Second, in researching the issue I've seen many people whose OS did, in fact, automatically rename the files to .JFIF. I saw it specifically for people running Windows 8.1 and Windows 10. The solutions I saw were a clean Windows install or registry editing.

lozertuser replied at 2017-06-14 06:04:28

Sounds like an unexpected bug in your OS as I am running the same OS and browser version as you and can not reproduce this problem. Read this thread and let me know if it solves your issue.

Owyn replied at 2017-06-17 07:19:31
Thank you for your link, it seems to have helped instantly.

HKEY_CLASSES_ROOT\MIME\Database\Content Type\JPEG was messed up with for some reason... I wonder what did it...