What are the options to block the methods bellow with Chrome?

navigator.appVersion

Info os.name

as I was successfully profiled in

http://browserspy.dk/browser.php

I´d like to hide Browser and OS in order to avoid exploits.

You can change the User Agent string in Dev Tools:

  1. Open Developer Tools (<kbd>F12</kbd>)
    Developer Tools
  2. Show the Console Drawer at the bottom by hitting <kbd>Esc</kbd>
    Console Drawer
  3. Add the Network Conditions tab to the drawer
    Network Conditions
  4. Under User Agent, uncheck "Select automatically", and pick a browser you wish to emulate or customize the string however you'd like
    User Agent