I found something rather unusual about
this post (
on this page) I made a while back (it only seems to be this one post)...
What it should look like (this is how it looks on my IE9 and Chrome 21.0.1180.89):
What it looks like on Firefox 15.0 (and a few previous versions IIRC):
The inner tags still load normally, however.
Doing a force (bypass cache) refresh (Ctrl + F5)... it can only be described as "reverse loading", whereby the images apparently disappear for whatever reason.
The issue also doesn't seem to happen everytime either, it seemed to work when using the [post] link, or clicking "edit" to load the quick editor and then cancelling (but the "reverse loading" thing occurs when you refresh).