I try to be reasonably aware of security, and try to avoid being tracked as best I can. I use AdBlock Plus and Ghostery, and Private Internet Access for my VPN, and I reject most cookies and do my best to be private and resist efforts to track me. I recently came across this website - Panopticlick - which lets you test your browser's privacy efforts. I did good, but not great. I still can be fingerprinted by my browser.