When I try to view my pictures... Firefox has started to ask, every time... "how do I want to view this JPG file. I must choose, Firefox, Internet explorer and so forth. I choose Firefox and it opens. BUT..... How do I get this message to STOP.... every blasted time I click on my pictures. There's some stuff in the "about:config" that someone changed from true to false... I think... What do I change back... so this annoying pop up.... stops....