Can't download quicktime plug in

[mom3]

Hi, I am trying to download quicktime plug in. I went to the Mozilla page which said it automatically found the plug in folder for Mozilla. When I went to download a message came up saying it can't find a folder click to save or browse. I go into browse go to program files, mozilla, plug ins and I have clicked on every folder and it says error can't download from here. I also tried every folder that said Mozilla in it. How do I download quicktime?