Thank you all for your help although I still might bin ff as it's not working correctly, ff thinks UKLDF is a security risk and blocks some content like images as it says in security menu
you should have the option to turn off content blocking and/or add the website to a whitelist and exclude it as in the image below but it's simply not there in my settings, see top image.
Obviously this issue does not affect every ff user and it is known by mozilla but they have failed to fix it and the workaround which sometimes works means you have to turn off all ff security which I am not happy with, thinking I might try opera browser for a while
Of course this post won't make any sense if you still can't see the images! 