Stop Your Browser from Spying on You: 5 Settings to Change Now

Every browser collects data about your online activity. That’s not necessarily malicious—it’s how websites remember your login, serve relevant ads, or measure traffic. But over the years, tracking has grown far more invasive than most people realize. Third‑party cookies, location pings, fingerprinting scripts, and dozens of other techniques follow you across sites, often without your explicit consent.

A recent PCWorld article (“Your browser is too nosy. Change these 5 settings now”) caught attention because it highlights how easy it is to dial back that data collection without breaking normal browsing. Below are the five most impactful changes you can make in Chrome, Firefox, Edge, and Safari today.

What happened

The article points out that browser companies have been quietly tightening privacy controls, but the default settings still lean toward letting sites collect as much as they can. For example, Chrome’s “Privacy Sandbox” introduced new ad‑tracking features, while Firefox and Safari have long offered stricter anti‑tracking tools that many users never enable. The result: most people browse with a level of exposure that could be reduced in minutes.

Why it matters

Even if you’re not worried about targeted ads, the same tracking infrastructure can be used for more concerning purposes—building detailed profiles of your health interests, political views, or daily routines. Data brokers buy and sell this information, and breaches can expose it to bad actors. Adjusting a handful of browser settings doesn’t make you anonymous, but it significantly reduces the surface area available to trackers and data collectors.

What you can do

Below are five settings to change. The exact menu names differ slightly between browsers, but the core idea is the same. I’ve noted the most common locations; if you can’t find a particular option, search the browser’s help section.

1. Block third‑party cookies and enable Global Privacy Control (or Do Not Track)

Third‑party cookies are the primary mechanism cross‑site trackers use to follow you. Disabling them stops the most widespread form of behavioral tracking.

  • Chrome: Settings → Privacy and security → Third‑party cookies → Block third‑party cookies. Also enable “Send a ‘Do Not Track’ request” (though many sites ignore it). As of 2024, Chrome also offers “Tracking Protection” as part of its Privacy Sandbox; you can turn that off under “Ad privacy” if you prefer to limit interest‑based ads entirely.
  • Firefox: Settings → Privacy & Security → Enhanced Tracking Protection → Strict (blocks third‑party cookies, fingerprinters, and cryptominers). Enable Global Privacy Control under the same menu if available.
  • Edge: Settings → Cookies and site permissions → Manage and delete cookies → Block third‑party cookies. Turn on “Send Do Not Track requests”.
  • Safari: Safari → Preferences → Privacy → Prevent cross‑site tracking (this is on by default in recent versions). Safari also has Intelligent Tracking Prevention, which is fine‑tuned automatically.

Trade‑off: Some sites that rely on third‑party cookies for login or payment processors may break. Usually you can whitelist specific sites.

2. Turn off location, camera, and microphone by default

Many sites ask for location or device access when they don’t truly need it. You can set the default to “block” and only allow on a case‑by‑case basis.

  • Chrome/Edge: Settings → Privacy and security → Site Settings → Location, Camera, Microphone → Don’t allow sites to see your location (and similar for camera/mic).
  • Firefox: Settings → Privacy & Security → Permissions → Location → Block new requests. Same for Camera and Microphone.
  • Safari: Safari → Preferences → Websites → Location → Deny without prompting. For Camera and Microphone, set to Deny or Ask.

Note that blocking location may affect map services or weather sites; you can always temporarily allow them.

3. Limit site permissions for notifications, autoplay, and clipboard

Notifications from websites are often used for spam or phishing. Autoplay video can waste bandwidth, and clipboard access can be abused to steal copied text.

  • Chrome/Edge: Site Settings → Notifications → Don’t allow sites to send notifications. For Autoplay, set to Limit audio and video (or block). For Clipboard, set to Ask or Block.
  • Firefox: Settings → Privacy & Security → Permissions → Notifications → Block new requests. Autoplay settings are under the same permissions menu; choose Block audio and video.
  • Safari: Preferences → Websites → Notifications → Deny. For Autoplay, set to Stop Media with Sound. Clipboard access is not a common permission in Safari; you can manage it via Extensions or site‑specific settings.

4. Switch to a privacy‑focused search engine

Your default search engine can collect search queries and click data. Consider DuckDuckGo, Brave Search, or Startpage. They don’t log your searches or build a profile.

  • Chrome: Settings → Search engine → Manage search engines → Change default to DuckDuckGo (or another). You can also install their extensions.
  • Firefox: Settings → Search → Default Search Engine → pick DuckDuckGo or another.
  • Edge: Settings → Privacy, search, and services → Address bar and search → Search on new tabs → pick DuckDuckGo or another.
  • Safari: Preferences → Search → Search engine → choose DuckDuckGo or Ecosia (also privacy‑focused).

If you prefer Google’s results, you can still use it through a proxy like Startpage, which forwards your query anonymously.

5. Enable HTTPS‑only mode and block fingerprinting

HTTPS‑only ensures you connect to sites over a secure, encrypted connection. Fingerprinting is a technique that uses your browser’s unique configuration (screen size, fonts, installed extensions) to create a stable identifier even without cookies.

  • Chrome: Settings → Privacy and security → Security → Always use secure connections (on). For fingerprinting, you need an extension like uBlock Origin or Disconnect (Chrome doesn’t natively block fingerprinting).
  • Firefox: Settings → Privacy & Security → HTTPS‑Only Mode → Enable HTTPS‑Only in all windows or private windows only. Under Enhanced Tracking Protection → Strict will block fingerprinters.
  • Edge: Settings → Privacy, search, and services → Security → Always use secure connections. Edge does not natively block fingerprinting; use an extension like uBlock Origin.
  • Safari: Preferences → Privacy → Hide IP address from trackers helps against some fingerprinting. Safari also blocks known fingerprinters automatically via Intelligent Tracking Prevention.

For more complete fingerprinting protection, consider Firefox with the “Strict” mode or use the Tor Browser (but that’s a separate conversation).

What next

After making these changes, test your browser’s privacy level with a tool like modern Cover Your Tracks (formerly Panopticlick). It will show you whether trackers can see your browsing and how distinctive your browser fingerprint is.

Revisit these settings every three months or after major browser updates. Companies occasionally change default behaviors or add new data‑collection features, and staying on top of them takes only a few minutes.

Sources: PCWorld article “Your browser is too nosy. Change these 5 settings now” (June 2026); browser help pages for Chrome, Firefox, Edge, Safari.