Everytime I click on a thumbnail (like in the SoftImage post, see Gaming Forum), it tries to save it onto my HD rather than just displaying it within the browser. I swear I didn't change Firefox, what gives?
I seriously thought this article was going to be about the jpg file format being an endangered species - "Where do I donate!" I was thinking...
Oh, I'm afraid I really have no idea about hot to fix your problem. Have you checked you haven't told it to automatically download jpg files to your hard drive in the "downloads" section? If so then I'm fresh out of ideas.