Adblock Plus is a free extension that allows you to - among other things - block annoying ads, disable tracking and block domains known to spread malware.
uBlock Origin (uBO) is a CPU and memory-efficient wide-spectrum content blocker. It blocks ads, trackers, coin miners, popups, annoying anti-blockers, malware sites, etc., by default using EasyList, EasyPrivacy, Peter Lowe's Blocklist, Online Malicious URL Blocklist, and uBO...
Blocks intrusive ads, boosts browser speed, and prevents tracking across all major browsers; supports customizable filters, Acceptable Ads, and over 30 languages.
A simple extension that brings some of 
NoScript 's functionality to Chrome while emphasizing simplicity and intuitiveness (no affiliation to NoScript or NotScripts).
Disconnect was founded in 2011 by former Google engineers and a consumer- and privacy-rights attorney. We develop award-winning, user-friendly privacy and security software in San Francisco, California.
HTTPS Everywhere is a browser extension produced as a collaboration between The Tor Project and the Electronic Frontier Foundation. It encrypts your communications with a number of major websites.
Block ads, cookies, popups & other trackers. Ghostery sets you up for a private, transparent, and fast internet.
Privacy Badger is a free browser extension made by the leading digital rights nonprofit EFF to stop companies from spying on you online.
