Hi While doing online banking (with Firefox, which I have on very high security settings), my computer began to partially freeze. I signed-out and then my computer was frozen and I powered-off the computer for safety. I started it again, and found that someone had replaced my Firefox with another version that had all of my settings removed. This was not an UPDATE by Firefox and I proved this. I checked my FIREWALL and some by the name of Igor Pavlov somehow was able to pass by my Kaspersky firewall; and, when I expanded his name, the evidence that he had indeed altered my Firefox (and perhaps more than once) was before my eyes! Shocking that he was able to alter my Firefox. Please see attachment. Despite "denying" him in my firewall, I seem to continue to have problems with Firefox (freezing at times), even though I uninstalled the version that he put on, and reinstalled Firefox (which kept all of my old settings, as it always does with I reinstall or when updates are done). I am afraid to use Firefox right now, unfortunately. At this point I want to entirely clean Firefox from my computer so that a reinstall does not recognize my past settings or anything else. Then reinstall fresh to see if that helps. Do you have any other suggestions? Thanks very much, TJ