When ever i use a search engine (google,yahoo,ask) all the links I click on redirect me to random spam sites. Firefox also hangs for about 15 seconds when loading websites after about 5 minutes of use. After about 10 minutes of use it says "stopped" in the bottom left corner and wont load any websites. I have to restart firefox and it usually gives me a "firefox is currently open but not responding please close firefox" which I do through to task manager. Google chrome wont even load my homepage and opera has the same redirect issue but not the hanging issue. I ran multiple anti malware scans including spybot, malwarebytes and ad aware they came up with no infected objects. I have java 6 update 18, adobe reader 9 and adobe flash player 10. Here is a hijackthis log hijackthis.txt