Are you viewing in original html, simple html or plain text? Try: 'Menu icon' > 'View' > 'Message body as ' > 'Original html'

I am viewing it as original HTML and unfortunately it still not showing inline images. Very frustrating!

http://kb.mozillazine.org/Images_in_messages_do_not_appear

Do you know if the email was contructed by someone using a Word/Outlook combination ? Notorious for not encoding properly. You would need to view the source. select email so it shows in Message Pane click on 'More' and select 'View source'

Do you see something like this:

• Content-Type: image/jpeg;
• name="IMAGE_1.jpg"
• Content-Transfer-Encoding: base64
• Content-Disposition: inline;
• filename="IMAGE_1.jpg"

or maybe

• Content-Type: application/octet-stream;
• name="IMAGE_2.jpg"
• Content-Transfer-Encoding: base64
• Content-Disposition: attachment;
• filename="IMAGE_2.jpg"

Post what you see in source. It will look similar to the above examples.

Thank you for your help on this, it does look like the disposition here is "attachment" for all images. No way to change that unless the sender changes it?

Content-Type: image/png; name=01a37000000MvXmAAK.png Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename=01a37000000MvXmAAK.png Content-ID: <01a37000000MvXmAAK>