That should work. Since it's a screen grab, you could try saving as PNG and see whether that uploads any better. (PNG has cleaner compression with large areas of flat color.)

Thanks for your reply,

I should have mentioned that I also tried it with a PNG file originally and it didn't work, which is why I tried JPEG.

Very strange...

probably your antivirus software blocks it, temporally disable your firewall.

The other thing is if it doesn't work in 10 seconds, I copy the text of my reply and reload the page. The attaching nearly always work after that. But I don't think that would work so well with the original question.

jscher2000, thank you, I actually did try that, I should have mentioned it in my original post.

I just tried uploading again, with this reply, since it has been a couple of weeks - still not working and still doing the same thing as before!

So weird!

I've been complaining about the upload server for sometime. I have to repeatedly update my answer or just use another post to get the image uploaded.

You can try to open the image in Firefox and re-save the image. Also make sure that the image doesn't have an embedded color profile or uses special compression. if you have a large image then try to crop the image and only leave the most important part. You can also upload the image to an online image hosting service and post the link in a reply.

cor-el, thanks for the reply and for the suggestions.

I just tried opening the image in Firefox and re-saving it, which worked just fine, but it will not upload either.

The image's color profile is listed as "Generic RGB Profile" - is that no good?

There is no compression being used.

I just tried to upload a tiny 748 x 430 image with a file size of 113 KB and that didn't work either. I have tried every size, file format and option I can think of!

I suppose I could upload the image to an image hosting service and post the link in a reply. If it becomes vital to the resolution of an issue, I will use that as a work around.

Same here. Most of my images are under 300KB and I have issues daily with the upload server. Can someone just look at the logs and they should see several attempts to upload and image.

Also, on Win 7 my images are all black and white. https://support.mozilla.org/en-US/questions/1365376?utm_campaign=questions-reply&utm_source=notification&utm_medium=email#answer-1478669

Having issues with posting even 300 KB black and white images is ridiculous.

It's also kind of annoying that there is no info in these support communities (that I can find anyway) about posting images, what types/sizes/formats/etc. are accepted or work better than others, troubleshooting issues with image posting, nothing.

I'm glad I'm not the only one experiencing these problems, but at the same time this shouldn't be so difficult for any of us.

I also just did another little test.

I took a screen shot within Firefox (not through my OS controls) of a small portion of a Firefox window (ironically of "How to create a screenshot of my problem" from a support forum post here) and tried to upload/attach it to this post.

Didn't work.

Ridiculous.

If the screenshot is less than 1 MB and is a PNG or JPS image then you should be able to upload the image. You can try to open the image in Firefox to see whether that is working.

It is possible that (anti-virus) security software is causing the problem. Try to disable security software temporarily to see if that makes a difference.

If the screenshot is less than 1 MB and is a PNG or JPS image then you should be able to upload the image. You can try to open the image in Firefox to see whether that is working. It is possible that (anti-virus) security software is causing the problem. Try to disable security software temporarily to see if that makes a difference.

None of the above for me. It takes multiple attempts or I just do it via a second post. In Windows and Linux.

The screenshot are always under 1MB. see screenshot Here's a screenshot of the spinning when trying to upload 74k file. As you can see, I had to edit this answer because the upload was not working.