I'm not an IE fan, either. I just solved a problem with Firefox I'd had for several days, though. MySpace and the WordPress Theme Viewer site were giving me a problem that I still don't know why it started. About 10 days ago, it started popping up the "You have chosen to open (file name)" window, asking me what I wanted to do with the file, when I clicked on a function button (Send, Approve, post, etc.) on MySpace and the other site, instead of performing the function.

I tried all kinds of things, things I found on Mozilla's site, the Standard Diagnostic for Firefox, suggestions from others, Google searches for answers, and nothing worked until I created a new profile. I don't know why that worked, when opening Firefox in Safe Mode didn't. Anyway, I've reinstalled my extensions and reconfigured Firefox, and so far, that problem hasn't reoccurred. There were a couple of other problems that cropped up, but I found fixes (one seemed to fix itself, oddly enough) quickly enough.