I open Chrome once in while for testing or on the rare occasion something only works there, so maybe this is useful for those occasions. But if you're serious about security and privacy shouldn't you be avoiding Chrome as your regular browser?
Yes it's not written in a memory-safe language, but drive-by exploits and attacks that escape the sandbox are exceedingly rare in Chrome, even if you're running an older version.
Of course if you add extensions and Flash to the mix, the security is degraded, but with a normal Chrome install it's fairly hard to do something bad in one tab that will negatively impact another.