5 Browser Privacy Settings You Should Change Right Now

Your browser probably knows more about you than your partner does. Every site you visit, every search you type, every link you click – it’s all recorded, packaged, and often sold to advertisers or data brokers. The good news is that modern browsers have built-in controls to limit that snooping. You just have to turn them on.

Below are five practical settings to adjust in Chrome, Firefox, Edge, and Safari. They’ll reduce tracking, shrink your digital footprint, and take just a few minutes to apply.

What happened: Browser tracking is still widespread, but the tools to stop it are finally here

For years, the default browser experience was designed to maximise data collection. Third-party cookies let advertisers follow you across the web. Fingerprinting scripts built a unique profile of your device settings. Even clearing your history didn’t stop everything.

Recent updates have changed that. All major browsers now block third-party cookies by default or offer clear controls to do so. Firefox and Safari have had Intelligent Tracking Prevention and Enhanced Tracking Protection for a while. Chrome recently began phasing out third-party cookies in 2024, though the transition has been gradual. Edge has added similar protections. But many users never touch these settings, so they stay on the lax defaults.

Why it matters: Your data is valuable – and vulnerable

Every tracker you allow is a potential leak. Ad networks share data with hundreds of partners, some of whom may not have strong security. Tracking also enables personalised scams: if a fraudster knows your browsing habits, they can craft phishing emails that look incredibly convincing. Reducing tracking reduces your attack surface.

What you can do: Five settings to change now

The following instructions assume you’re using the latest stable version of each browser. If you haven’t updated recently, do that first – newer versions often have better privacy protections built in.

1. Disable third-party cookies and enable tracking protection

  • Chrome: Go to Settings > Privacy and security > Third-party cookies. Choose “Block third-party cookies.” You can also enable “Send a ‘Do Not Track’ request” in the same section, but keep in mind most sites ignore it.
  • Firefox: Go to Settings > Privacy & Security > Enhanced Tracking Protection. Select “Strict” mode. This blocks known trackers, third-party cookies, and fingerprinting scripts.
  • Edge: Go to Settings > Privacy, search, and services > Tracking prevention. Choose “Strict.” Also under “Cookies and site permissions,” select “Block third-party cookies.”
  • Safari: Go to Safari > Settings > Privacy. Check “Prevent cross-site tracking.” Safari blocks third-party cookies by default, but this setting also removes tracking data regularly.

2. Enable the “Do Not Track” signal (worth a try)

Do Not Track (DNT) is a simple HTTP header that tells websites you don’t want to be tracked. It’s not legally binding, and many sites ignore it. But some do respect it, so there’s no downside.

  • Chrome: Settings > Privacy and security > “Send a ‘Do Not Track’ request with your browsing traffic.”
  • Firefox: Settings > Privacy & Security > “Send websites a ‘Do Not Track’ signal.” You can also set it to “Always” or “Only when Firefox tells it.”
  • Edge: Not available as a separate toggle; Microsoft uses tracking prevention instead.
  • Safari: No DNT toggle in recent versions; Apple trusts its Intelligent Tracking Prevention.

3. Block fingerprinting and cryptominers

Fingerprinting collects details about your browser – screen resolution, installed fonts, OS version – to create a unique ID. It’s harder to block than cookies, but some browsers have mitigations.

  • Firefox: In Settings > Privacy & Security > Enhanced Tracking Protection (Strict mode), fingerprinters are blocked automatically. Also, Firefox includes “Fingerprint Randomization” for Privacy Preserving Attribution.
  • Chrome: No built-in fingerprinting protection. You’ll need an extension (see step 5).
  • Edge: Tracking prevention (Strict) blocks known fingerprinters.
  • Safari: Blocks fingerprinting by default in Intelligent Tracking Prevention. No toggle needed.

Cryptomining scripts that use your computer to mine cryptocurrency without permission are also blocked by Firefox and Edge in their tracking protection lists.

4. Auto-clear history, cookies, and cache on exit

This ensures that once you close the browser, your session data is gone. Useful for shared computers or if you want a clean slate every time.

  • Chrome: Settings > Privacy and security > Cookies and other site data. Toggle “Clear cookies and site data when you close all windows.”
  • Firefox: Settings > Privacy & Security > History: choose “Firefox will: Use custom settings for history.” Check “Clear history when Firefox closes,” then click Settings to choose what to clear (cookies, cache, active logins, etc.).
  • Edge: Settings > Privacy, search, and services > “Choose what to clear every time you close the browser.” Toggle on cookies, cache, and browsing history.
  • Safari: Safari > Settings > General. Under “Remove history items,” choose “After one day” or “After one day.” For cookies, Safari deletes them after you quit if “Prevent cross-site tracking” is on.

5. Add a privacy-focused extension

Extensions fill gaps that browsers don’t cover. Two light, effective options:

  • uBlock Origin: Blocks ads, trackers, and malicious domains. It’s open-source and more efficient than most ad blockers. Available for Chrome, Firefox, Edge. (Safari users have a separate version called uBlock Origin for Safari.)
  • Privacy Badger (by the Electronic Frontier Foundation): Automatically learns to block trackers that don’t respect DNT. Good companion to uBlock Origin. Works on Chrome, Firefox, Edge.

Install only what you need – too many extensions can slow down your browser or become attack vectors themselves.

Bonus: Quick tips for mobile browsers

Mobile browsers track you differently due to app integrations and fewer settings. On iOS, Safari in Private mode already blocks trackers. On Android, Firefox and Chrome can be tightened the same way as desktop, though the menu paths differ slightly. Consider using Firefox Focus (iOS/Android) for quick throwaway sessions – it clears everything on exit.

Conclusion

You don’t have to be a privacy expert to take control. These five settings will stop the most common tracking methods. Start with cookies and tracking protection, then move to extensions. Within ten minutes, your browser will be far less nosy.

Remember: privacy is an ongoing process, not a one-time fix. Browsers change their settings with updates, so revisit these controls every few months.

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