Any "sandbox" App avaliable?

[2012Tony2012]

Do we need to "sandbox" a web browser in case we visit a very nasty malware website which runs nasty scripts etc?

OR is MacOS already "sandboxed"? If anything from a web browser etc wants to change or add anything to our Mac, a pop up window would appear asking for our password, right? So we don't have to ever worry about browsing and don't need addons such as "noscript" etc?

 

[Partron22]

Yes, Mavericks is litter-trained.'

No, we still have to worry about going to very nasty malware website which runs nasty scripts etc.

 

[NexusHubs]

Safari and Chrome do render web page and run plug-ins in sandbox, but they are not sandbox app in Apple's term. The browser apps still have full right to access any system resources that you can access.

 

[2012Tony2012]

Safari and Chrome do render web page and run plug-ins in sandbox, but they are not sandbox app in Apple's term. The browser apps still have full right to access any system resources that you can access.

I believe only safari in maverick "sandboxes" flash? Not Safari in Mountain Lion etc?