Modern web browsers have not been made to assure personal web privacy. You can use free software plugins to regain control. They not only respect your freedom but also your privacy .
DuckDuckGo
This is an alternative for Google. DuckDuckGo is an internet search engine that emphasizes protecting searchers' privacy and avoiding the filter bubble of personalized search results. They don't store your personal information. Ever. Their privacy policy is simple: they don’t collect or share any of your personal information.
HTTPS Everywhere
HTTPS Everywhere is a Firefox, Chrome, and Opera extension that encrypts your communications with many major websites, making your browsing more secure.
uBlock Origin
uBlock Origin is not only an "ad blocker" and trackers, it's a wide-spectrum content blocker with CPU and memory efficiency as a primary feature. It has no monetization strategy and is completely open source.
Decentraleyes
Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
NoScript
Maximum protection for your browser: NoScript allows active content only for trusted domains of your choice to prevent exploitation. It allows JavaScript, Flash, Java and other executable content to run only from trusted domains of your choice. It protects your "trust boundaries" against cross-site scripting attacks (XSS), cross-zone DNS rebinding / CSRF attacks (router hacking), and Clickjacking attempts.
ClearURLs
ClearURLs is an add-on based on the new WebExtensions technology and will automatically remove tracking elements from URLs to help protect your privacy when browse through the Internet.