Hi Jzkuhler, could you attach those images to a reply? They didn't come through with your question for some reason. Thanks.

https://support.mozilla.org/questions/1197623#question-reply

Also, thank you for sharing your add-on list. Since Ghostery can block content in pages, could you click its toolbar icon and see whether it might be blocking content in those email messages?

Look at the bottom of this page under uploaded images please.

One possible reason for this is something that occurs when message content is pasted over and over again. The HTML tags get nested inside one another and at some point, Firefox just gives up and either dumps out the innermost content without styling or ignores it.

Example threads:

• Some gmails blank in Firefox only
• email text doesn't show in hotmail or gmail in Firefox, but it does in internet explorer

Does it help to call up a printable view of the message? On some sites there is a printer button or a Print item on a menu. Either way, you would usually get a simplified layout of the message in a new window.

Anyway, if this is the problem, I am not aware of a fix for it. My last research in October indicated:

Currently, there is a limit of 200 nesting levels. After that is reached, what you see depends on the layout of the page. If the rest of the content is NOT in a table, you see a plain text dump of it, without any style or layout. However, if it is in a table, it is not shown at all. I think that is the problem with the email sites.

There is work ongoing to increase the nesting cut-off to about 500 levels, which should cover most cases. However, I don't understand the rest of the developers' discussion, so I can't tell whether this work is close to being finished or some ways off.