Automatically Rediects

I'm using the latest Firefox browser. When I use the search bar, the results page loads fine. But when I click on a link it redirects to an obscure search page. I've tried Spy-bot, Avast, Superantispyware and Kaspersky TDSSKILLER, but all come up with nothing. What do I do now?

Have you tried starting FireFox in it's Safe Mode?

Start / Programs / Mozilla Firefox / Mozilla Firefox (Safe Mode)

The search functions work properly in Firefox's safe mode.

Most likely a bad Add-on then. You can disable them a few at a time until you find the one causing the problem. More ideas at the link I gave you.