I've had a block of my hard drive partitioned off as Ex3 fro a while. I finally started using Linux a bit for a few utilities that don't exist on Windows. But, I've been reluctant to use it for browsing because I've become used to having my browser in SandboxIE and my system protected by Returnil. I know that the user is non root by default, but I'm not fully confident as it stands. Is there something like this for Linux?