Incognito window on Chrome or any other browser just creates a fresh browser session that got no history or cookies, and it will erase them after you get out, but once you start using incognito and login in only one of Google services you are gone, plus if you previously logged in to any Google service then you fire up your incognito window, they can still compare the IP and they know who is exactly on the incognito session.
Incognito is a fake safety product like every other privacy feature, so lets make a list of browsers that at least doesn't track you and send information to the developer.
Well, I am gonna take off chrome from the list, it updates without permission and I wonder what it has on every update, totally different then chromium and well it's LOGGED in and connected with Google whatever you are doing.
How to make chrome private? I will tell you on next article.
SafariApple decides to share it's finger print database stolen from users using iPhone 5s with the NSA I don't think I can trust their browser anymore or whatever American companies make, no offence to american citizens, I know that you hate NSA too.
OperaI am not an opera fan, I just used for mobile browsing, which is another story, so yeah. forget opera for now.
So the most private browser is: [it might change anytime so do not even trust this browsers]
FirefoxFirefox is one of the most private browsers, it have no connection with Google, it doesn't track you if you don't want it to, and it has bunch of real extensions that can keep you private, including proxy switching plugins, TOR handling, encryption and more, so it's more then just a browser, it's a whole system inside your browser and it's under control.
So we have got only Firefox on the list, and even Firefox do not trust, in a world where the top of the pyramid create products for you, the only thing you can do is to stop using those products and invent your own, or at least run a virtual machine for the browser and make sure it's connected through VPN.
You might ask why so private? well, everyone have the right of privacy, it's true NSA and other programs might help catch the bad people, but people watching naked photos of your wife are also bad people, yes you NSA.