How to Be Untraceable by Supercookies?

I've just heard of it. How do they work? How can we avoid getting them?

Let's say I'm using multiple things to be anonymous as much as I can. Like:

1) Public wifi from far with yagi antenna (with no log dns)

2) No log offshore VPN

3) Routing all traffic through TOR.

4) Proxy chains with high anonymous disposable proxies

So we still can NOT say it's impossible to trace back to me but nearly impossible right? But what are these supercookies exactly? I guees If I've got supercookies no matter how many different things I use to anonymize myself more, they can trace me?

I heard that NSA caught some of illegal TOR users by supercookies. Yes, we all know TOR is compromised and I'm not relying on TOR. I'm just routing all my traffic through TOR to be more hard to get. However, I don't use TOR browser. I use regular chromium with disconnect.me(helps to avoid cookies tracing you) extension and I'm not using adobe flash of course. What settings I need to configure to avoid supercookies or delete them afterwards?

p.s. I'm talking about new generation html5 based supercookies since I don't use flash.