This shows you too have a 16bpp X display. So it's definitely a Firefox regression with Ubuntu's move from Firefox 2 to Firefox 3 for displaying JPEGs on a 16bpp X display. You should find that using Firefox 2 (package firefox-2 in 8.04 for example) displays that page fine.
Obviously, trying to view photographs (JPEGs) with FF3 is pointless, rendering (NPI) it useless for common use.
> xdpyinfo | grep depths ... gives this: depths (7): 16, 1, 4, 8, 15, 24, 32
This shows you too have a 16bpp X display. So it's definitely a Firefox regression with Ubuntu's move from Firefox 2 to Firefox 3 for displaying JPEGs on a 16bpp X display. You should find that using Firefox 2 (package firefox-2 in 8.04 for example) displays that page fine.
Obviously, trying to view photographs (JPEGs) with FF3 is pointless, rendering (NPI) it useless for common use.