Your Browser Is Too Nosy: 5 Settings You Need to Change Now

Your web browser collects a surprising amount of information about you: the sites you visit, what you search for, your device type, screen resolution, installed fonts, and even your approximate location. This data is used for advertising, analytics, and sometimes shared with third parties you’ve never heard of.

Recent browser updates have added even more telemetry and tracking features, often enabled by default. While these changes are marketed as improvements to “personalization” or “performance,” they can come at a real cost to your privacy.

The good news is you can push back. Here are five settings you should adjust in Chrome, Firefox, and Edge to limit what your browser reveals about you.

What Happened

Over the past year, major browsers have rolled out changes that expand data collection. Chrome’s Privacy Sandbox, for example, replaces third‑party cookies with group‑based tracking that still follows your interests. Edge has deepened its integration with Microsoft’s ad platform, and Firefox—while generally more privacy‑friendly—has added some telemetry options that aren’t always obvious. The net effect is that even careful users can be tracked across the web without realizing it.

Why It Matters

Every extra data point, from your browser fingerprint to your internet service provider’s logs, makes it easier for advertisers, data brokers, and malicious actors to build a detailed profile of you. Simple changes can reduce how much of that information leaks out, giving you more control over your online identity.

1. Disable Third‑Party Cookies (Chrome, Firefox, Edge)

Third‑party cookies are the backbone of cross‑site tracking. While they’re being phased out in Chrome (replaced by Privacy Sandbox), you can still block them manually in all three browsers.

  • Chrome: Go to Settings → Privacy and security → Third‑party cookies. Select “Block third‑party cookies.”
  • Firefox: Go to Settings → Privacy & Security → Enhanced Tracking Protection. Choose “Custom” and check “Cookies.” Then select “Cross‑site tracking cookies” from the dropdown.
  • Edge: Go to Settings → Privacy, search, and services → Tracking prevention. Set the level to “Strict.” This also blocks most third‑party cookies.

A quick warning: some older sites may break with third‑party cookies disabled. If you run into issues, you can add an exception for that site.

2. Enable “Do Not Track” and Global Privacy Control

Do Not Track (DNT) is a browser signal that asks sites not to track you. It’s not legally binding, but some sites respect it. Global Privacy Control (GPC) is a newer, stronger signal that legally requires compliance in some US states.

  • Chrome: Settings → Privacy and security → Third‑party cookies → toggle on “Send a ‘Do Not Track’ request with your browsing traffic.” GPC is automatically enabled when you turn this on.
  • Firefox: Settings → Privacy & Security → scroll to “Tracking Protection” → check “Tell websites not to sell or share my data” (this enables GPC). Also enable “Send websites a ‘Do Not Track’ signal.”
  • Edge: Settings → Privacy, search, and services → “Privacy” section → toggle on “Send Do Not Track requests.” For GPC, Edge currently requires the Global Privacy Control browser extension.

3. Turn Off Browser Fingerprinting (Firefox Resistance)

Fingerprinting uses your device’s unique combination of screen size, installed fonts, plugins, and other hardware details to create a persistent identifier. Firefox has a built‑in protection called “Fingerprinting Resistance” that makes your browser look more generic.

  • Firefox: In the address bar, type about:config and press Enter. Accept the risk warning. Search for privacy.resistFingerprinting and double‑click to set it to true. This may cause some sites to display in a simplified layout or request permission more often, but it significantly reduces fingerprinting.

Chrome and Edge do not offer a direct equivalent. You can mitigate fingerprinting there by using extensions like CanvasBlocker or by enabling strict tracking prevention (Edge) which limits some fingerprinting scripts.

4. Disable Telemetry and Data Collection (Edge and Chrome)

Both Edge and Chrome send usage statistics, crash reports, and browsing data back to their parent companies. You can turn most of this off.

  • Chrome: Settings → You and Google → Sync and Google services → turn off “Help improve Chrome’s features and performance.” Also disable “Make searches and browsing better.” Under Privacy and security → Security, set “Use secure DNS” later.
  • Edge: Settings → Privacy, search, and services → scroll to “Personalization & advertising” → turn off all toggles. Under “Diagnostic data,” select “Required diagnostic data” and disable “Improve products by sending optional diagnostic data.” Also turn off “Show suggestions” and “Offer Microsoft advertisers your search history.”

Firefox collects minimal telemetry by default, but you can check: Settings → Privacy & Security → scroll to “Firefox Data Collection and Use” → uncheck everything.

5. Enable DNS‑over‑HTTPS (All Browsers)

DNS‑over‑HTTPS (DoH) encrypts the domain name lookups your browser makes, preventing your ISP from seeing which websites you visit. It does not hide the site’s IP address from your ISP, but it stops them from logging the domain names.

  • Chrome: Settings → Privacy and security → Security → toggle on “Use secure DNS.” Then choose a provider (Cloudflare or NextDNS are common choices).
  • Firefox: Settings → Privacy & Security → scroll to “DNS over HTTPS” → enable “Max Protection” or “Increased Protection” and select a provider.
  • Edge: Settings → Privacy, search, and services → scroll to “Security” → toggle on “Use secure DNS to specify how to look up the network address for websites.” Choose a service provider.

Check These Settings Regularly

Browser updates sometimes reset or add new tracking features. It’s a good habit to revisit these settings every few months. While no single change will make you anonymous, these adjustments close the most common data leaks your browser opens by default. You’ll still browse the web, but you’ll do it on your terms.

Sources

  • PCWorld, “Your browser is too nosy. Change these 5 settings now”
  • Mozilla Firefox Privacy Settings Documentation
  • Google Chrome Privacy & Security Help
  • Microsoft Edge Privacy Settings Guide