Protect Your Browser
While we just spoke about avoiding shady browser extensions, there are also a number of ones that can help protect both your privacy and security. Examples like Privacy Badger and uBlock Origin can go a long way toward keeping malicious trackers from being stored in your browser.
HTTPS Everywhere is another great option that ensures your connection to sites is secure. For more advanced users, extensions like uMatrix or NoScript can stop malicious JavaScript from hijacking your browser or performing other nefarious deeds. Your browsing habits should be the first line of defense, these extensions are just a bolster.