[nickpsecurity]

I just gave that as an example to illustrate the point about those security measures. There's others in real OS's and products in production now plus more that existed decades into the past. And quite a few, including one I named, can handle Firefox. Good, wild guess though as untrustworthy browsers designed for untrustworthy UNIXen are hard. ;) Look up OP2 Web Browser or IBOS Illinois Browser Operating System next time if you want architectures designed for secure OS's. Chrome's security was a knockoff of a predecessor of one.