Let's try, I need some information, lots of questions.

  • Doesn't show the pictures in all of the sections ?
  • What buttons are you missing ?
  • Did you see the avatars ?
  • Did you see pictures in the groups you are member of ?
  • How does the rectangle box looks like (Colour, content)?
  • What version of FireFox do you use (Help--> About FireFox)?
  • Installed a new add-on recently?

To be sure, you did clear your cookies ?(Go to Tools --> Options. Click Privacy. Click the "Show Cookies" button and then click the Remove All Cookies button. )