I understand that Google Earth will display .kmz files. When I went to Google to get the program, there was an option for just getting the plugin. I installed it and it shows to be active in Firefox. When I try to open the .kmz file on my hard drive, Windows 7 asks me what program to use to open it - Firefox is not listed as one of them. Therefore, I browsed for Firefox and Windows then listed it. Now when I double click on the .kmz file, Firefox opens a tab but the screen is blank. Is there something I haven't done to link the Google Earth plugin to .kmz files?