Along with using tools and services to help increase the level of privacy and anonymity while on the internet, its also critical that you change your habits to make this effective.

Separate (sandbox) what you do online with these tools and do not use services that can track you or associate with your identity like using Google services, social media like Facebook, Twitter, etc. If you choose to use these services, use them with another browser, or ideally, another computer and never mix using the same browser/tool set for both activities.

Also seriously considering disabling the maximum amount of browser plugins possible to minimize the attack vector exploits have against you. Flash, Java, and JavaScript all should be disabled as possible, obviously usability of some websites will degrade because of this.