I uninstalled Firefox last week because I was having computer problems (fans) after the latest update. Just a coincidence I guess because I continued having the same problems after uninstalling, so I reinstalled it today. However, I am unable to remove a square orange disc? icon from my desktop. I can only remove it if I quit Firefox. After opening Firefox again, I not only get the icon back, but I also get the install instruction box again, ie...... large box with the blue and orange Firefox icon dictating to put it in my application folder. If I do that, Firefox re-installs again, and I start all over again. I restarted my computer hoping that would help, but it did not. If it is harmless, ok, but it was never there for the many years I've used Firefox and it's a pain to have to click out the box and also have the icon on my desktop all the time.