@Charles 9 What in the name of satan is your ultimate purpose with this 'ultra-secure' web browser? Real life security is a trade-off between convenience and being more secure. If you have specific planned activities for this type of web-browsing, that changes the goal posts.
Firstly I'd be more skeptical about a browser software connecting to today's public internet that was last updated in 2006.
If you're that paranoid, just switch to Qubes OS where every application window can basically can be it's own "VM / sandbox" to be destroyed and re-created at whim.
But what if you're a budding druglord kingpin trying to get your empire off the ground, and are just worried about that pesky NSA finding your whereabouts? Stick to a series of VPN's, TOR, disable all cookies forever, and worry obsessively about DNS leaks. Put all this on a burner laptop wiped with your favorite flavor of penguin, and no links or credentials to any of your personal resources.
And if your evil genius doomsday plan requires the utmost security to prevent your volcano lair from being discovered, wipe your burner laptop with Qubes and do all of the above.