That image begins with "Ad", so make sure that an ad-blocking extension or software isn't blocking it.

• http://p.twimg.com/Ad_4ViHCMAAzPN3.jpg

If images are missing then check that you aren't blocking images from some domains.

• Check the permissions for the domain in the current tab in "Tools > Page Info > Permissions"
• Check the permissions for all sites on the about:permissions page, via the location bar
• Check that images are enabled: Tools > Options > Content: [X] Load images automatically
• Check the exceptions in "Tools > Options > Content: Load Images > Exceptions"
• Check the "Tools > Page Info > Media" tab for blocked images (scroll through all the images with the cursor Down key).

If an image in the list is grayed and there is a check-mark in the box "Block Images from..." then remove that mark to unblock the images from that domain.

There are also extensions (Tools > Add-ons > Extensions) and security software (firewall, anti-virus) that can block images.

• http://kb.mozillazine.org/Images_or_animations_do_not_load

Hello Cor-el Thanks for the advise, I checked a few things as you mentioned and it turned out that the ad-block add-on was preventing the pictures loading, very strange as it doen't do it anywhere else on pictures, but all rectified now.

Thanks again :)