I was on newsday.com, just reading some news stories when a pop up arose, closed my browser page, and told me it was scanning my computer for malware, When it finished, it left me with an exe file to save or cancel, and canceling just started the whole process over again. I did some research and it seems to be a mimic of some previously successful scareware aimed at windows users, except aimed at mac users. The research I found called it "rouge antimalware software" or something like that and it says there is nothing on my computer to worry about. Anyone experience this? Side note- I wonder if it's coincidence that this showed up 1 day after upgrading to the latest FF versions? I'm finding pop ups behind my open windows I had never gotten prior to this upgrade.