Saving images seem to always be JPEG not JPG

[Big Al]

Lately it seems no matter where I save pictures with Firefox, they always seem to be tagged as jpeg images. As I remember, they used to be
jpg but lately I'm constantly changing the extension. Small dislike for the 4 character extension idea, as much as there is nothing wrong
with it.

Does anyone know of any setting to alter this? Is it Firefox or the websites I seem to frequent?
However when I look at the image properties (right-click) it says jpg, And Google Chrome saves as jpg.

Al

--
Linux Mint Cinnamon 20.1 64bit, Dell Inspiron 5570 laptop
Quad Core i7-8550U, 16G Memory, 512G SSD, 750G & 1TB HDDs

[WaltS48]

On 1/18/21 8:25 AM, Big Al wrote:
> Lately it seems no matter where I save pictures with Firefox, they
> always seem to be tagged as jpeg images.   As I remember, they used to
> be jpg but lately I'm constantly changing the extension.   Small dislike
> for the 4 character extension idea, as much as there is nothing wrong
> with it.
>
> Does anyone know of any setting to alter this?  Is it Firefox or the
> websites I seem to frequent?
> However when I look at the image properties (right-click) it says jpg,
> And Google Chrome saves as jpg.
>
> Al
>

Some sample websites?

If you right-click on the message and select "View Image Info" what is
the "Type" identified as?

A couple samples from the obituary page I am viewing shows them as JPEG.

If I go to save them the files are .jpg extensions.

--
OS: Fedora 33 Workstation - Gnome Desktop
https://www.thunderbird.net/en-US/get-involved/

[Brian Gregory]

On 18/01/2021 13:25, Big Al wrote:
> Lately it seems no matter where I save pictures with Firefox, they
> always seem to be tagged as jpeg images.   As I remember, they used to
> be jpg but lately I'm constantly changing the extension.   Small dislike
> for the 4 character extension idea, as much as there is nothing wrong
> with it.
>
> Does anyone know of any setting to alter this?  Is it Firefox or the
> websites I seem to frequent?
> However when I look at the image properties (right-click) it says jpg,
> And Google Chrome saves as jpg.
>
> Al
>

They will normally be saved with the name the website creator used.

--
Brian Gregory (in England).

[Big Al]

On 1/18/21 9:22 AM, this is what WaltS48 wrote:
> On 1/18/21 8:25 AM, Big Al wrote:
>> Lately it seems no matter where I save pictures with Firefox, they always seem to be tagged as jpeg images.   As I remember, they used to
>> be jpg but lately I'm constantly changing the extension.   Small dislike for the 4 character extension idea, as much as there is nothing
>> wrong with it.
>>
>> Does anyone know of any setting to alter this?  Is it Firefox or the websites I seem to frequent?
>> However when I look at the image properties (right-click) it says jpg, And Google Chrome saves as jpg.
>>
>> Al
>>
>
> Some sample websites?
>
> If you right-click on the message and select "View Image Info" what is the "Type" identified as?
>
> A couple samples from the obituary page I am viewing shows them as JPEG.
>
> If I go to save them the files are .jpg extensions.
>

https://wallhaven.cc/w/43rqmd
image info shows jpg but save as is jpeg.
At least here.

[Big Al]

https://wallhaven.cc/w/43rqmd
image info shows jpg but save as is jpeg.
At least here.

[WaltS48]

On 1/18/21 10:20 AM, Big Al wrote:
> On 1/18/21 9:22 AM, this is what WaltS48 wrote:
>> On 1/18/21 8:25 AM, Big Al wrote:
>>> Lately it seems no matter where I save pictures with Firefox, they
>>> always seem to be tagged as jpeg images.   As I remember, they used
>>> to be jpg but lately I'm constantly changing the extension.   Small
>>> dislike for the 4 character extension idea, as much as there is
>>> nothing wrong with it.
>>>
>>> Does anyone know of any setting to alter this?  Is it Firefox or the
>>> websites I seem to frequent?
>>> However when I look at the image properties (right-click) it says
>>> jpg, And Google Chrome saves as jpg.
>>>
>>> Al
>>>
>>
>> Some sample websites?
>>
>> If you right-click on the message and select "View Image Info" what is
>> the "Type" identified as?
>>
>> A couple samples from the obituary page I am viewing shows them as JPEG.
>>
>> If I go to save them the files are .jpg extensions.
>>
> https://wallhaven.cc/w/43rqmd
> image info shows jpg  but save as is jpeg.
> At least here.
>
>

Shows the Location as a .jpg file, Type: as JPEG, clicking the "Save As"
button in the Page Info dialog saves it as a .jpg file for me.

[Andrei Z.]

Big Al wrote:
> On 1/18/21 9:22 AM, this is what WaltS48 wrote:
>> On 1/18/21 8:25 AM, Big Al wrote:
>>> Lately it seems no matter where I save pictures with Firefox, they
>>> always seem to be tagged as jpeg images.   As I remember, they used
>>> to be jpg but lately I'm constantly changing the extension.   Small
>>> dislike for the 4 character extension idea, as much as there is
>>> nothing wrong with it.
>>>
>>> Does anyone know of any setting to alter this?  Is it Firefox or the
>>> websites I seem to frequent?
>>> However when I look at the image properties (right-click) it says
>>> jpg, And Google Chrome saves as jpg.
>>>
>>> Al
>>>
>>
>> Some sample websites?
>>
>> If you right-click on the message and select "View Image Info" what is
>> the "Type" identified as?
>>
>> A couple samples from the obituary page I am viewing shows them as JPEG.
>>
>> If I go to save them the files are .jpg extensions.
>>
> https://wallhaven.cc/w/43rqmd
> image info shows jpg  but save as is jpeg.
> At least here.
>
>

wget https://w.wallhaven.cc/full/43/wallhaven-43rqmd.jpg

file wallhaven-43rqmd.jpg
wallhaven-43rqmd.jpg: JPEG image data, JFIF standard 1.01, aspect ratio,
density 1x1, segment length 16, comment: "CREATOR: gd-jpeg v1.0 (using
IJG JPEG v80), quality = 90", baseline, precision 8, 2560x1600, components 3

[Nobody]

On Mon, 18 Jan 2021 10:20:14 -0500, Big Al <Bi...@invalid.com> wrote:

>On 1/18/21 9:22 AM, this is what WaltS48 wrote:
>> On 1/18/21 8:25 AM, Big Al wrote:
>>> Lately it seems no matter where I save pictures with Firefox, they always seem to be tagged as jpeg images.   As I remember, they used to
>>> be jpg but lately I'm constantly changing the extension.   Small dislike for the 4 character extension idea, as much as there is nothing
>>> wrong with it.
>>>
>>> Does anyone know of any setting to alter this?  Is it Firefox or the websites I seem to frequent?
>>> However when I look at the image properties (right-click) it says jpg, And Google Chrome saves as jpg.
>>>
>>> Al
>>>
>>
>> Some sample websites?
>>
>> If you right-click on the message and select "View Image Info" what is the "Type" identified as?
>>
>> A couple samples from the obituary page I am viewing shows them as JPEG.
>>
>> If I go to save them the files are .jpg extensions.
>>
>https://wallhaven.cc/w/43rqmd
>image info shows jpg but save as is jpeg.
>At least here.

On Win 10 Ffox 84.0.2, for me it's the reverse... right clicking on
purple flower, then 'View Image Info' shows Type as 'JPEG Image'...
but 'Save Image As' brings up the dialog box as
<wallhaven-43rqmd.jpg>.

My image viewer is Irfanview which tells me it wants to create that
file suffix for all these possibilities at that time: (*.jpg, *.jpeg,
*.jfif, *.pjpeg, *.pjg).

Is it your image viewer that has the .jpeg fixation!

["\"Re...@home.com]

On 1/18/21 8:25 AM, Big Al wrote:

> Lately it seems no matter where I save pictures with Firefox, they
> always seem to be tagged as jpeg images.   As I remember, they used to
> be jpg but lately I'm constantly changing the extension.   Small dislike
> for the 4 character extension idea, as much as there is nothing wrong
> with it.
>
> Does anyone know of any setting to alter this?  Is it Firefox or the
> websites I seem to frequent?
> However when I look at the image properties (right-click) it says jpg,
> And Google Chrome saves as jpg.
>
> Al
>

Some reading here might help understand the "non-issue"

https://www.keycdn.com/support/difference-between-jpg-and-jpeg


TL;DR There is no real difference !

[Big Al]

No, I'm just using firefox's simple right click save as. I'm not viewing it. If I 'view image' it just loads it in another firefox tab, no
viewer.
Al

[WaltS48]

On 1/18/21 10:47 AM, Big Al wrote:
> On 1/18/21 10:10 AM, this is what Brian Gregory wrote:
>> On 18/01/2021 13:25, Big Al wrote:
>>> Lately it seems no matter where I save pictures with Firefox, they
>>> always seem to be tagged as jpeg images.   As I remember, they used
>>> to be jpg but lately I'm constantly changing the extension.   Small
>>> dislike for the 4 character extension idea, as much as there is
>>> nothing wrong with it.
>>>
>>> Does anyone know of any setting to alter this?  Is it Firefox or the
>>> websites I seem to frequent?
>>> However when I look at the image properties (right-click) it says
>>> jpg, And Google Chrome saves as jpg.
>>>
>>> Al
>>>
>>
>> They will normally be saved with the name the website creator used.
>>
> https://wallhaven.cc/w/43rqmd
> image info shows jpg  but save as is jpeg.
> At least here.
>

Could it be a Linux Mint Cinnamon desktop thing?

I'll attempt a test with a Live version later.

[Big Al]

Yes, I know all this and that's why I manually change the name to *.jpg and have no issues.
I just want this dang Firefox to stop using jpeg all the time. Google Chrome does not do it. Same web site and same image.

And even a new profile with nothing added does the same thing. So I'm perplexed. It might be a Linux thing too, but why does Chrome work.

Anyway, I've probably spent too much time of this (as all of you too have) so I'll drop this for now. It's not major. I'll probably check
whatever scripts I have that manipulate jpg's and correct them to maybe just rename the file as I'm processing them.

[Zaidy036]

On 1/18/2021 10:20 AM, Big Al wrote:
> On 1/18/21 9:22 AM, this is what WaltS48 wrote:
>> On 1/18/21 8:25 AM, Big Al wrote:
>>> Lately it seems no matter where I save pictures with Firefox, they
>>> always seem to be tagged as jpeg images.   As I remember, they used
>>> to be jpg but lately I'm constantly changing the extension.   Small
>>> dislike for the 4 character extension idea, as much as there is
>>> nothing wrong with it.
>>>
>>> Does anyone know of any setting to alter this?  Is it Firefox or the
>>> websites I seem to frequent?
>>> However when I look at the image properties (right-click) it says
>>> jpg, And Google Chrome saves as jpg.
>>>
>>> Al
>>>
>>
>> Some sample websites?
>>
>> If you right-click on the message and select "View Image Info" what is
>> the "Type" identified as?
>>
>> A couple samples from the obituary page I am viewing shows them as JPEG.
>>
>> If I go to save them the files are .jpg extensions.
>>
> https://wallhaven.cc/w/43rqmd
> image info shows jpg  but save as is jpeg.
> At least here.
>
>

<https://meridianthemes.net/jpg-vs-jpeg-file-formats/>

If you only want jpg then use a batch or file rename app. jpeg is the
"new" file type since the 3 character limit was removed some time ago.

[Big Al]

I just booted up my Windows and it works on that purple leaf in windows and FF. So it wouldn't surprise me it's a Linux Mint Cinnamon
thing. I've got a VM of Mate I can boot later.
Al

[Nobody]

No... if I right click in the middle of that image on-line, the small
dialog launched includes several options (for me, eleven)... among
them 'View Image Info'... note the extra word, not simply 'View
Image'... as well as the 'Save Image As' prompt.

[Big Al]

Yes, yes, yes, I got all that. And view image info says it's a jpg. ANd save as saves as a jpeg. There's the rub.

It's the OS. I've tested it in other Systems and it must be something here in Mint CInnamon.
Bye!

[Big Al]

And it works fine in Linux Mate. So it must be a cinnamon thing. End of troubleshooting.

[WaltS48]

But, but I wasn't done yet! :)

So I can confirm that if I right-click and use "Save Image As" using
Linux Mint 20.1 Cinnamon, the file name is shown as "wallhaven-43rqmd.jpeg".

If I right-click and select "View Image Info", then click the "Save As"
button in that dialog, the file name is "wallhaven-43rqmd.jpg".

So, either rename or take the extra step and use View Image Info > Save As.

[Sailfish]

My bloviated meandering follows what WaltS48 graced us with on 1/18/2021
7:51 AM:

Same-same

--
Sailfish
Rare Mozilla Stuff: http://tinyurl.com/z86x3sg

[WaltS48]

[WaltS48]

But, but I wasn't done yet! :)

So I can confirm that if I right-click and use "Save Image As" using

Linux Mint 20.1 Cinnamon LiveUSB, the file name is shown as

"wallhaven-43rqmd.jpeg".

If I right-click and select "View Image Info", then click the "Save As"
button in that dialog, the file name is "wallhaven-43rqmd.jpg".

So, either rename or take the extra step and use View Image Info > Save As.

Must be a Cinnamon thing as using "Save Image As" saves it as
"wallhaven-43rqmd.jpeg".

Very interesting site.

[Nobody]

No, no, no!

You stated 'view image'. But 'View Image Info' was the prompt needed
to confirm what you were generating.

When helpers aren't being helped with exactitudes... <sigh>

[pe...@never.here]

On Mon, 18 Jan 2021 14:16:22 -0500, Big Al <Bi...@invalid.com> wrote:

Snipped..

>> Image'... as well as the 'Save Image As' prompt.
>>
>Yes, yes, yes, I got all that. And view image info says it's a jpg. ANd save as saves as a jpeg. There's the rub.
>
>It's the OS. I've tested it in other Systems and it must be something here in Mint CInnamon.

FWIW

Same OS here but not yet upped to 20.1.

FF 84.0.2

Shows the Location as a .jepg file,
Type: as JPEG,
"Save As" saves as .jpg

Palemoon 29.17.0

Shows the Location as a .jpg file,
Type: as JPEG,

"Save As" saves as .jpg
--
Pete

[Dave Royal]

Big Al <Bi...@invalid.com> wrote:
>
> And even a new profile with nothing added does the same thing. So I'm perplexed. It might be a Linux thing too, but why does Chrome work.
>

On SuSE/xfce it doesn't show the jpg/jpeg thing you're complaining
about.

But 'save as' from 'view image info' and 'save as' from the webpage do
not behave the same. The former saves using the filename loaded from
the webserver. The latter changes the extension to match the filetype.

If I take an image foo.jpg and rename it foo.gif, then 'view image
info' will save it as foo.gif which is what I expected.

Plain 'save as' will change it to foo.jpeg', which surprised me, though
it's perhaps useful it the file is to be sent to an OS that uses file
extensions - Linux generally doesn't. If it's called 'foo.bar' it will
save it as 'foo.bar.jpeg'. So it seems to 'correct' the file extension.

XFCE doesn't 'correct' jpg to jpeg, as your cinnamon seems to do. I
think that's arguably a bug. You could raise it here:
<https://github.com/linuxmint/cinnamon/issues>
..jpeg is perhaps 'more correct' but .jpg is generally accepted for
legacy reasons. Does Windows still maintain an 8.3 version of a
filename?
--
(Remove numerics from email address)

[pe...@never.here]

On Tue, 19 Jan 2021 10:48:24 +0000, pe...@never.here wrote:

>On Mon, 18 Jan 2021 14:16:22 -0500, Big Al <Bi...@invalid.com> wrote:
>
>Snipped..
>
>>> Image'... as well as the 'Save Image As' prompt.
>>>
>>Yes, yes, yes, I got all that. And view image info says it's a jpg. ANd save as saves as a jpeg. There's the rub.
>>
>>It's the OS. I've tested it in other Systems and it must be something here in Mint CInnamon.
>
>FWIW
>
>Same OS here but not yet upped to 20.1.

Upped to 20.1 now. Same results.

[Big Al]

What I mean is yes, I know it's view image info, I know what all the 11 or so different items are on the right click menu. And yes there
is a view image also. And I've used them all to see what they do in hopes there was some clue.

If you haven't seen all the other threads, it seems to be something in the OS. I've tried Windows and LInux Mate and have no issues there.
Even a new profile, again no issues. Just my version of the OS.

[Big Al]

Very nice work around Walt. View image info then immediately Save As saves it as it shows, JPG. It's 2 clicks but I don't have to click
the dialog and place the cursor on the 'e' and hit del. Much simpler with your way.

Thanks much. And yes, wallhaven has a pretty good presentation for wallpapers in that clicking one opens a new tab and all you have to do
is close the tab and keep viewing the list of pictures. And clicking the image enlarges it in steps for looking at the details.

Some sites open one or two more pages to get the image you want and you have to hit back arrows 2 times. More involved.

Al.

[Wolf K]

Questions: Are *.jpeg files a different format than *.jpg? If not,
what's the problem? If so, what's the diff?

--
Wolf K
kirkwood40.blogspot.com
“When I am playing with my cat, how do I know she is not playing with me?
(Montaigne)

[Big Al]

Walt gave me a workaround that's simple. But you are using Palemoon so that tosses one variable into the mix, meaning the OS isn't the
issue as much as Firefox and the OS combined. Odd. Anyway, my workaround is simple and fixes my issue.

[Big Al]

On 1/19/21 9:35 AM, this is what Wolf K wrote:
> On 2021-01-19 05:48, pe...@never.here wrote:
>> On Mon, 18 Jan 2021 14:16:22 -0500, Big Al <Bi...@invalid.com> wrote:
>>
>> Snipped..
>>
>>>> Image'... as well as the 'Save Image As' prompt.
>>>>
>>> Yes, yes, yes, I got all that.  And view image info says it's a jpg.  ANd save as saves as a jpeg.   There's the rub.
>>>
>>> It's the OS.  I've tested it in other Systems and it must be something here in Mint CInnamon.
>>
>> FWIW
>>
>> Same OS here but not yet upped to 20.1.
>>
>> FF 84.0.2
>>
>> Shows the Location as a .jepg file,
>> Type: as JPEG,
>> "Save As" saves as .jpg
>>
>> Palemoon 29.17.0
>>
>> Shows the Location as a .jpg file,
>> Type: as JPEG,
>> "Save As" saves as .jpg
>>
>
> Questions: Are *.jpeg files a different format than *.jpg? If not, what's the problem? If so, what's the diff?
>

They are identical except for the legacy extension from old Windows 8.3 format.
I just rename them when saving to JPG. They still work. No display issues etc.

[PietB]

Wolf K wrote:
> Questions:
> Are *.jpeg files a different format than *.jpg?

No.

The official name of the format is JPEG, after Joint Photographic
Experts Group, and the type is image/jpeg. JPEG files can have the
extension .jpeg, .jpg, .jpe, .jfif, .jfi or .jif, but they don't
necessarily have to have an extension - the extension is there only
for practical reasons, like tying it to a specific program. Remove
the extension from a JPEG file, open it with Irfanview, and it will
tell you that it has an incorrect extension and offers to correct it,
but if you say no, you can proceed as normal. Other programs, like
old Photoshop versions, weren't that smart and barfed on it.

> If not, what's the problem?

None. It's a matter personal taste, like preferring .jpg over .JPG

> If so, what's the diff?

None.

-p

[Andrei Z.]

Big Al wrote:
> Lately it seems no matter where I save pictures with Firefox, they
> always seem to be tagged as jpeg images.   As I remember, they used to
> be jpg but lately I'm constantly changing the extension.   Small dislike
> for the 4 character extension idea, as much as there is nothing wrong
> with it.
>
> Does anyone know of any setting to alter this?  Is it Firefox or the
> websites I seem to frequent?
> However when I look at the image properties (right-click) it says jpg,
> And Google Chrome saves as jpg.
>
> Al
>

It looks like this is part of a common problem.

Closed in Firefox 85 Bug 1684183
When downloading a file that is internally a zip, but has a different
extension (.rwp, .story, .t5script), the extension is overwritten to .zip
https://bugzilla.mozilla.org/show_bug.cgi?id=1684183

<quote>
This wouldn't happen if the webserver didn't send the mimetype
application/zip. Why does it do that, if the file shouldn't be treated
as a zipfile? :-\

We could fix this specific instance by removing application/zip from the
list added in
https://hg.mozilla.org/mozilla-central/rev/0a93a065053d#l4.17 . But all
of this is so dumb - half the time, web servers send us the correct
mimetype but the wrong file extension, and the other time they send the
wrong mimetype and the correct file extension (like here). And whenever
we pick the wrong thing, it's all our fault. It's infuriating.
<unquote>

<quote>
How does Chrome handle this (and bug 1667787)? If Chrome behaves
differently, of course "It's all our fault(tm)".
<unquote>
:)

[Dave Royal]

On 28 Jan 2021 10:03:32 +0300 Andrei Z. wrote:
>[Big Al wrote:]

>> Lately it seems no matter where I save pictures with Firefox, they
>> always seem to be tagged as jpeg images.   As I remember, they used to
>> be jpg but lately I'm constantly changing the extension.   Small dislike
>> for the 4 character extension idea, as much as there is nothing wrong
>> with it.
>>
>> Does anyone know of any setting to alter this?  Is it Firefox or the
>> websites I seem to frequent?
>> However when I look at the image properties (right-click) it says jpg,
>> And Google Chrome saves as jpg.
>>
>> Al
>>
>It looks like this is part of a common problem.
>
>Closed in Firefox 85 Bug 1684183
>When downloading a file that is internally a zip, but has a different
>extension (.rwp, .story, .t5script), the extension is overwritten to .zip
>https://bugzilla.mozilla.org/show_bug.cgi?id=1684183
>
><quote>
>This wouldn't happen if the webserver didn't send the mimetype
>application/zip. Why does it do that, if the file shouldn't be treated
>as a zipfile? :-\
>

Interesting. But that concerns downloads, where Fx seems sometimes to
set or change the file extension based on the mime-type received from
the server. (Which is often wrong, particularly for non-unix servers,
as Linux users and midi-file downloaders know well.)

But why should saving an already downloaded and displayed image change
the extension?

[Big Al]

We glory be!!! It may be Firefox 85 fixed the issue. I just tested about 8 images from the same site I first posted and they all download
as jpg and not jpeg.

Thanks for alerting me Andrei

[Andrei Z.]

https://i.imgur.com/7lWxHik.jpg

Downloaded
file 7lWxHik.png
7lWxHik.png: PNG image data, 501 x 233, 8-bit/color RGBA, non-interlaced

[Big Al]

Odd. Yet view image info says it's a jpg.
I wonder if renaming a png to jpg, then posting it as jpg would do this. I'll have to test it one day. It's got me intrigued.
Al

[Big Al]

I renamed your image to jpg and uploaded it and it still downloaded as png. Interesting, I couldn't fake the website.
https://imgur.com/jEg8Nfg or https://i.imgur.com/jEg8Nfg.png

[Andrei Z.]

This is an old link :)

[PietB]

Big Al wrote:

> Andrei Z. wrote:
>> Downloaded
>> file 7lWxHik.png
>> 7lWxHik.png: PNG image data, 501 x 233, 8-bit/color RGBA, non-interlaced
>
> I renamed your image to jpg and uploaded it and it still downloaded as png.

Just renaming won't help you. The file header says it's a png file, so that's
what it really is. Open your renamed-to-jpg file with Irfanview and it will
tell you it's a png file with a wrong extension.

-p

[Big Al]

My links are not old. I just put them up 10 minutes before posting the results.
What do you mean by old link? Which link?

[Big Al]

Thanks. I knew that. I was trying to see if firefox / imgur would faulter and just passing on my observations.
Al

[Andrei Z.]

My link https://i.imgur.com/7lWxHik.jpg is old.
The server was probably not that smart at the time.