Once again, this morning I got a msg telling me that an update was available and asking to restart Firefox. I clicked OK. The next time I opened a new tab, malware "snapdo.com" came up in the new tab. I know how to reset the newtab preference. What I don't know is why firefox doesn't prevent this unwanted intrusion. I have read how to remove snapdo.com entries which either tell me to use add/remove programs (it isn't in my list) or to use some software that I would prefer not to use. What's up, Firefox? Can you fix this.