A quick run down of some simple browser based extensions to give you back some semblance of privacy:

    1. uBlock Origin - best open source ad blocker
    2. Ghostery - stops you from being tracked as much as possible
    3. Chrome UA Spoofer - Use chrome but set the user agent to firefox, this way custom exploits target the wrong browser saving you from being pwned
    4. HTTPS Everywhere - Defualts sites to https if possible

I'd also recommend everyone pick up a copy of The Transparent Society (https://amzn.to/2Lapjw7) as it goes into depth on individual privacy and the right to access information about those in control of society.