Apple started to use a new UI replacing the “old” brushed metal style – you can see it in your Mail or iTunes when you’re using Mac OS X Tiger. There are 3 cool apps that give your operating system a unified look in the new style:

read the original article here

you need at least this:

  • UNO (takes care of all the magic)
  • GrApple Theme for Firefox (to make your Firefox appear like Safari ­čÖé )
  • TabX for Firefox (to get these close-buttons on every tab)