Facebook when I upload photos? When I upload photos to Facebook, I get a pop-up window saying "an applet from upload.facebook.com is requesting unrestricted access" to my computer. If I click "Deny," I get only another window that says "The publisher cannot be verified by a trusted source. Code will be treated as unsigned." I don't understand any of this. Who gets unrestricted access? Does that mean that my entire computer is accessible to...whom? What does that mean? What publisher? What is a trusted source, and what "code" is 'unsigned" by whom?