For a long time, I used IE7 with no problems, then I got an offer to "improve" IE last spring. At the time, I was running XP Pro (I skipped Vista) and my laptop was running fine up to that point. So being that I like the latest browser, I accepted. What a mistake that was. But without rehashing the entire story, that's what led me to Firefox 3.5RC. Little did I know what I was getting into. That's why FF releases a new version of a browser every month, in an effort to cover their vulnerabilities. While they do say what's fixed, it's what they don't say that worries me. I've uninstalled FF from Win 7 (x2), XP Pro (x2), and Win 2K. For the time being, I'll use IE8, except with Win 2K, I'll give Opera a try. See, what happened was, I was on another forum, and I ran across a thread that I thought was attacking FF, and without even researching as to what was going on, I defended FF, saying they would never hide anything. This went back and forth for a couple of posts, and finally, the moderator gave me an official warning, telling me that I was giving users a false sense of security, and that if I continued on, the next step would lead to a suspension. At that point, I gathered my thoughts and went to the very first post of the thread. This has been an issue since 2006. I felt like a total ass, once I read the posts. Secunia revealed exploitations in FF years ago, I'm surprised it hasn't came up on this forum, being that Windows users were more at risk. However, this particular threat can break through the armor of any OS, if the one behind the attack is skilled, and the victim is not well protected, and does not know what's going on. Someone using an "arbitrary code execution" can literally take your computer over. Think about that for a minute: Take control of your computer, and you are helpless. That's a scary thought. It's not just a virus or everyday malware, it's one of the most serious things that can happen to you on the net. Read about it in Wikipedia, it gives a full description of it. But that's the end of the relationship between Firefox and me. Currently, I'm back to IE8. I may give it another shot for a while. It may prove to be better on Windows 7 over XP Pro.