Privacy-Focused Browser Settings: A Configuration Guide
Detailed configuration guides for Firefox, Chrome, Safari, and Brave with specific settings to maximize privacy while maintaining usability. Includes about:config tweaks and extension recommendations.
Key Takeaways
- Firefox offers the deepest privacy customization of any mainstream browser.
- Chrome is built by an advertising company, so privacy requires active effort.
- Safari's Intelligent Tracking Prevention blocks cross-site tracking automatically.
Firefox: The Privacy Champion
Firefox offers the deepest privacy customization of any mainstream browser. Start with Enhanced Tracking Protection set to Strict mode. Then navigate to about:config for advanced hardening:
privacy.resistFingerprinting= true (spoofs many fingerprint vectors)network.http.sendRefererHeader= 1 (send referrer to same origin only)dom.event.clipboardevents.enabled= false (prevent clipboard snooping)media.peerconnection.enabled= false (disable WebRTC IP leak)
Chrome: Damage Limitation
Chrome is built by an advertising company, so privacy requires active effort. Disable the following in Settings > Privacy and Security:
- Turn off Preload pages, URL predictions, and search suggestions
- Block third-party cookies
- Disable the Privacy Sandbox (unless you prefer it to raw tracking)
- Use uBlock Origin to supplement Chrome's limited built-in protections
Safari: Good Defaults
Safari's Intelligent Tracking Prevention blocks cross-site tracking automatically. Ensure these are enabled: Prevent Cross-Site Tracking, Hide IP Address, and Advanced Tracking and Fingerprinting Protection. Safari's limitations are in extension availability โ fewer privacy tools are available compared to Firefox.
Essential Extensions
| Extension | Purpose | Browsers |
|---|---|---|
| uBlock Origin | Ad/tracker blocking | Firefox, Chrome |
| Privacy Badger | Tracker learning | All |
| HTTPS Everywhere | Force encryption | Firefox (built into others) |
| Decentraleyes | CDN request interception | Firefox, Chrome |