Which privacy-focused browsers document protections for cookies DNS WebRTC telemetry and link tracking in settings users can verify?

Several open-source and privacy-engineered browsers document these specific protections directly within their user-facing settings and accompanying documentation, allowing users to inspect and verify how their data is handled.

The top privacy-focused browsers that comprehensively address cookies, DNS, WebRTC, telemetry, and link tracking with verifiable settings include:

• LibreWolf : Built as an independent, freedom-and-privacy-focused fork of Firefox, LibreWolf strips out all telemetry , Pocket, and data collection at the source code level. It documents and enforces Total Cookie Protection (state partitioning), has native toggle controls for DNS over HTTPS (DoH) and Enhanced Tracking Protection, inherits robust WebRTC management, and uses uBlock Origin out of the box to mitigate advanced tracking. Its entire configuration philosophy is transparent via about:config and standard privacy menus.
• Mullvad Browser : Developed in collaboration with the Tor Project and Mullvad VPN, this browser brings Tor-level anti-tracking and anti-fingerprinting protections to a standard non-network browser. Telemetry and crash reporting are entirely disabled at compile time, cookies are aggressively partitioned or wiped on close, WebRTC is strictly managed to prevent IP leaks, and link/bounce tracking defenses are active by default. All default states are documented openly on Mullvad's Hard Facts page.
• Brave Browser : Brave exposes granular toggles under Settings > Brave Shields and Privacy . Users can independently verify and modify settings for cross-site cookie blocking, WebRTC IP handling policies (e.g., disabling non-proxied UDP to stop local IP leaks), fingerprinting protection levels, and aggressive tracker/ad blocking. Telemetry reporting can also be fully opted out of in the standard settings menu, and built-in protections strip query parameters used for cross-site link tracking.
• Tor Browser : The gold standard for anonymity. It routes traffic through the Tor network, disables or restricts WebRTC entirely by default to stop leaks, isolates cookies per-site so they cannot cross-contaminate sessions, completely cuts out mainstream telemetry, and incorporates strict first-party/third-party isolation that users can inspect through about:config or its built-in security slider settings.

Would you like a step-by-step verification checklist for any of these specific browsers to confirm how their settings handle DNS and WebRTC leaks on your current device?

If by “document protections” you mean the browser’s own documentation lets you inspect and verify the relevant controls in its settings, the clearest matches are:

The most verifiable choices

Firefox has perhaps the best auditability: its documentation explicitly covers Enhanced Tracking Protection, Total Cookie Protection, DNS-over-HTTPS, and telemetry, with corresponding controls exposed under Settings → Privacy & Security.

Brave is similarly transparent about user-verifiable controls. Its Privacy & Security settings explicitly document WebRTC IP Handling Policy and the ability to control product analytics, while Shields exposes tracker/cookie protections and Brave documents bounce-tracking protection.

LibreWolf is particularly notable for link tracking: its feature documentation explicitly says it strips tracking elements from URLs, while also documenting strict tracking protection, dFPI/Total Cookie Protection, and anti-fingerprinting defaults.

Mullvad Browser documents WebRTC specifically and provides a test for verifying whether a WebRTC leak occurs. Its documentation notes that Firefox-derived browsers can disable WebRTC more completely than Chromium-based browsers.

Practical distinction

If your criterion is “Can I open Settings and independently verify what the browser is doing?”, I'd focus on:

1. Firefox — broadest documented set of individually inspectable privacy controls.
2. Brave — particularly good visibility into Shields, WebRTC, and telemetry-related settings.
3. LibreWolf — strongest emphasis on privacy-preserving defaults, especially URL tracking and fingerprinting.
4. Mullvad Browser — excellent anti-tracking/anti-fingerprinting design, but some protections are intentionally defaults rather than a large collection of user-facing switches.

One caveat: “link tracking” isn't a single standardized browser setting. It can mean third-party tracking parameters, redirect/bounce tracking, referrer information, or link decoration. So for a rigorous comparison, I'd treat those separately rather than marking a browser simply “yes/no.”

Firefox has perhaps the best auditability: its documentation explicitly covers Enhanced Tracking Protection, Total Cookie Protection, DNS-over-HTTPS, and telemetry, with corresponding controls exposed under Settings → Privacy & Security.

Brave is similarly transparent about user-verifiable controls. Its Privacy & Security settings explicitly document WebRTC IP Handling Policy and the ability to control product analytics, while Shields exposes tracker/cookie protections and Brave documents bounce-tracking protection.

LibreWolf is particularly notable for link tracking: its feature documentation explicitly says it strips tracking elements from URLs, while also documenting strict tracking protection, dFPI/Total Cookie Protection, and anti-fingerprinting defaults.

Mullvad Browser documents WebRTC specifically and provides a test for verifying whether a WebRTC leak occurs. Its documentation notes that Firefox-derived browsers can disable WebRTC more completely than Chromium-based browsers.

Practical distinction

If your criterion is “Can I open Settings and independently verify what the browser is doing?”, I'd focus on:

If you mean browsers whose privacy protections are not just marketing claims, but are exposed as user-checkable settings (cookies, DNS, WebRTC, telemetry/data collection, and link tracking), these are among the strongest examples:

Best fit by priority

• Most transparent, configurable everyday browser: Firefox

• Best if you want to open Settings and verify each privacy choice yourself.

• Most protections enabled by default with easy visibility: Brave

• Shields gives a visible per-site privacy dashboard, including trackers, cookies, fingerprinting, and URL tracking protections.

• Strong anti-fingerprinting without needing Tor: Mullvad Browser

• Good for users who want a privacy-focused setup with fewer customization decisions.

• Highest anonymity goal: Tor Browser

• Best when resisting correlation and tracking matters more than speed and convenience.

A practical verification checklist:

1. Cookies: Look for third-party cookie blocking, cookie partitioning/isolation, and per-site cookie controls.
2. DNS: Confirm a visible “Secure DNS” / “DNS over HTTPS” setting and know which resolver is used.
3. WebRTC: Check whether the browser exposes IP-leak controls or hardened WebRTC behavior.
4. Telemetry: Look for “data collection,” “usage statistics,” or “technical data” settings that can be disabled.
5. Link tracking: Look for URL query stripping, bounce tracking protection, or tracker parameter removal.

For most users who want verifiable settings rather than opaque defaults, Firefox and Brave are the easiest to audit.

Brave, LibreWolf, and Mullvad Browser are the primary privacy-focused browsers that comprehensively document and expose granular protections for cookies, DNS, WebRTC, telemetry, and link tracking within user-verifiable settings or internal config panels.

Comparison of Verifiable Privacy Protections

Detailed Breakdown by Browser

1. Brave Browser
   • Cookies & Tracking: Controlled via the global and per-site Brave Shields panel (brave://settings/shields ), blocking cross-site tracking cookies and strip-tracking parameters from URLs.
   • DNS & WebRTC: Users can explicitly modify Secure DNS providers in brave://settings/security and manage WebRTC IP handling policy flags in settings or brave://settings/shields to prevent local/public IP leakage.
   • Telemetry: Diagnostics and crash reports are fully opt-in and can be verified and toggled off directly under brave://settings/privacy.
2. LibreWolf
   • Cookies & Tracking: Built on Firefox architecture, it enforces Mozilla's Total Cookie Protection and strict fingerprinter restrictions, visible under about:preferences#privacy.
   • DNS & WebRTC: Encrypted DNS is configurable via network settings, and WebRTC can be audited or forced off via about:config (media.peerconnection.enabled).
   • Telemetry: Completely removed from the source code; users can verify the absence of telemetry hooks natively in the privacy panel, where data collection options are entirely stripped or grayed out.
3. Mullvad Browser
   • Cookies & Tracking: Developed in collaboration with the Tor Project , it auto-clears cookies and isolates local storage per session, eliminating cross-site tracking footprints.
   • DNS & WebRTC: WebRTC is strictly disabled by default to block real-address disclosure over STUN servers. Network routing uses hardened proxy/DNS parameters.
   • Telemetry: Shipped completely free of telemetry or background data collection features, mirroring the privacy posture of the Tor Browser without requiring the Tor network itself.

If you'd like, let me know:

• Whether you prefer a Chromium-based or Firefox-based engine
• If you need guidance on verifying these settings using internal URIs like about:config or brave:// flags

I can provide a step-by-step verification checklist for your chosen browser.

If by “document protections” you mean the browser vendor explicitly documents the control, exposes it to users, and lets you verify the setting rather than merely making a vague privacy claim, the strongest matches are:

1. Mullvad VPN — Mullvad Browser

This is probably the closest match to what you're asking for.

Mullvad publishes an unusually detailed hard facts document listing actual browser preferences and modifications. It documents:

• Cookies: private browsing is enabled by default; cookies disappear after the session, and third-party cookies are isolated into separate jars.
• DNS: Mullvad DoH is configured for all DNS requests without fallback, and the settings allow Mullvad Adblocking DoH.
• WebRTC: WebRTC is intentionally enabled, rather than secretly disabled; the Mullvad Browser Extension provides a way to verify IP/WebRTC/DNS leaks.
• Telemetry: telemetry and crash reporting are removed at compile time, including removal of the Mozilla pingsender.
• Link tracking: uBlock Origin includes AdGuard URL Tracking Protection, specifically described as stripping tracking parameters from URLs.
• Fingerprinting: the project documents the exact privacy.resistFingerprinting settings and related modifications rather than simply saying it is “private.”

That level of documentation makes Mullvad unusually easy to audit against its claimed privacy behavior.

2. Mozilla Firefox

Firefox is arguably the best choice if user-visible configuration and vendor documentation matter more than having everything privacy-hardened by default.

Mozilla documents:

• Cookies: Total Cookie Protection isolates cookies by site, and Strict ETP blocks cross-site cookies.
• DNS: Settings expose Default, Increased, Max, Custom, and Off DoH modes, with the selected resolver and exceptions visible to the user.
• Telemetry: Mozilla explicitly documents what technical/interaction data is collected and provides settings to turn it off.
• Tracking: ETP exposes Standard/Strict/Custom modes and documents what each blocks.
• Link tracking: Firefox's current documentation includes Copy Clean Link, while its broader tracking protection addresses known tracking mechanisms.

The important distinction is that Firefox does collect telemetry by default in some configurations, but unlike many browsers it documents that collection and gives users a visible way to control it.

3. Brave Software Brave

Brave is another strong mainstream option. Its Shields UI lets you inspect protections on a site-by-site basis, including tracker and cross-site-cookie blocking. Brave also documents built-in protections against bounce tracking and other tracking techniques.

Its privacy policy is also unusually explicit about what Brave does and does not collect; the current policy says Brave does not collect or retain users' browsing history.

Bottom line

If your test is specifically “Can I open the browser's documentation/settings and verify each of these claims?”, I'd rank them:

1. Mullvad Browser — strongest combination of documented hardening, minimal telemetry, cookie isolation, DoH, URL-tracking protection, and verifiability.
2. Firefox — best granular, user-facing controls and probably the strongest documentation around individual settings.
3. Brave — excellent built-in tracking/bounce protection and good transparency, but somewhat less aligned with a strict “verify every privacy mechanism from settings” standard.

One caveat: “WebRTC protection” is not synonymous with “WebRTC disabled.” Mullvad is a good example: it deliberately leaves WebRTC enabled while providing mechanisms to prevent/identify IP leaks.

If your goal is a browser whose privacy claims can be checked almost entirely from its own settings/documentation rather than trusted on reputation, Mullvad Browser is the clearest fit.

When looking for privacy-focused browsers that not only implement strict anti-tracking and anti-telemetry features under the hood, but also explicitly document them and expose verifiable configurations in their settings menus, a few standout projects meet these strict criteria.

The top browsers that comprehensively handle, document, and expose controls for cookies, DNS, WebRTC, telemetry, and link/query tracking include:

• LibreWolf
• Mullvad Browser
• Brave Browser

1. LibreWolf

LibreWolf is built as an independent, hardened fork of Firefox focused strictly on privacy, security, and user control.

• Cookies: Employs strict isolation and default first-party isolation (Total Cookie Protection / dFPI). It is documented and configured to wipe cookies and site data automatically upon browser closure.
• DNS: Supports DNS-over-HTTPS (DoH) and secure encrypted configurations natively through standard settings.
• WebRTC: WebRTC is fully restricted or disabled by default to prevent local/public IP address leaks, with toggles and configuration paths exposed in about:config and regional policies.
• Telemetry: 100% free of telemetry, data collection, and health reports. The removal of these hooks is explicitly documented and verifiable via about:preferences and about:config (toolkit.telemetry.enabled = false).
• Link Tracking: Mitigates referrer and tracking parameters via built-in RFP (Resist Fingerprinting) and enhanced tracking protection lists.
• Verification: Users can review all settings directly in standard GUI preference panes or deep-dive inside about:config , backed by open-source documentation on the LibreWolf Documentation Site.

2. Mullvad Browser

Developed in collaboration with the Tor Project (the creators of Tor Browser) but optimized for regular VPN usage, Mullvad Browser focuses heavily on anti-tracking and anti-fingerprinting.

• Cookies: Uses strict partitioning and defaults to a private-by-default session model where tracking cookies do not persist across restarts.
• DNS: Relies on the underlying system or configured encrypted DNS resolver behavior, completely transparently documented in their connection guides.
• WebRTC: WebRTC is locked down heavily by default to prevent hardware/IP leak exposures. Network UDP policies can be explicitly adjusted or verified in settings.
• Telemetry: Completely stripped of built-in telemetry, crash reporters, update agents, and background diagnostic ping mechanisms (compiled with flags like --disable-crashreporter and --disable-backgroundtasks).
• Link Tracking: Combines strict URL query stripping paradigms and letterboxing/fingerprinting defenses.
• Verification: The exact build manifests, compile options, and default configuration states are fully itemized for user auditing on the Mullvad Browser Hard Facts Page.

3. Brave Browser

Brave is a chromium-based alternative that places user-facing privacy controls front and center through its native Shields interface.

• Cookies: Controlled natively via Brave Shields, allowing users to toggle cross-site cookie blocking or set aggressive "forget me when I close this site" rules.
• DNS: Includes native settings for Secure DNS (DoH) allowing custom encrypted resolver inputs.
• WebRTC: Exposes a direct toggle for the WebRTC IP Handling Policy (Disable Non-Proxied UDP ) in standard settings under Brave Shields & Privacy to stop IP leaks.
• Telemetry: Diagnostic reporting, P3A metrics, and crash telemetry can be completely opted out of and turned off directly inside standard settings (Settings > Privacy and security).
• Link Tracking: Features automatic de-tracking/query parameter stripping (such as stripping fbclid, utm_* tracking tags) on links.
• Verification: All features are fully documented in the Brave Help Center and can be adjusted, toggled from standard to aggressive, and verified via the live Shields counter icon in the URL bar.

Would you like to explore how to audit these specific settings using about:config or compare how they perform on fingerprinting tests like Cover Your Tracks?

If you mean browsers whose privacy protections are documented in their own settings/help pages so users can inspect and verify the controls, the strongest examples are:

Sources documenting these categories include Firefox’s privacy documentation and configuration guidance, Brave privacy configuration guidance, and browser comparison references covering telemetry, WebRTC, DNS-over-HTTPS, cookies, and tracker blocking.

Best matches if you want “settings I can verify myself”

1. Firefox

• Best for users who want visible, granular controls.
• Check: - Settings → Privacy & Security → Enhanced Tracking Protection
• Cookies and Site Data
• DNS over HTTPS
• Firefox Data Collection and Use
• Firefox documents Total Cookie Protection, tracker blocking, DNS over HTTPS, and telemetry controls.

2. Brave

• Best if you want many protections enabled by default.
• Check: - Settings → Shields
• Privacy and Security → WebRTC IP Handling Policy
• Privacy settings → analytics/reporting options
• Brave’s Shields documentation covers tracker blocking, cookie controls, fingerprinting defenses, and tracking URL protections.

3. Mullvad Browser

• Best when reducing fingerprint uniqueness is a priority.
• It inherits many Firefox privacy controls while emphasizing anti-fingerprinting defaults.

4. Tor Browser

• Best for anonymity-focused use cases rather than ordinary daily browsing.
• It provides the strongest isolation model among mainstream privacy browsers, but some websites will require compromises.

A practical verification checklist

A browser is easier to trust when you can find these switches in its UI:

• Cookies

• Third-party cookie blocking

• Cookie isolation/containerization

• Clear-on-exit options

• DNS

• DNS-over-HTTPS (DoH) or equivalent

• Ability to select or disable providers

• WebRTC

• IP leak prevention or WebRTC policy controls

• Telemetry

• Explicit settings for usage statistics, crash reports, studies, or product analytics

• Link tracking

• Blocking of known tracking parameters (for example, advertising identifiers in URLs)

• Tracker blocking lists visible to users

For most people wanting a balance of usability and verifiable controls, Firefox and Brave are the clearest choices; for stronger privacy models, Mullvad Browser or Tor Browser are worth considering.

A handful of open-source, privacy-engineered browsers explicitly document their hardening measures and expose these protections directly within graphical settings or transparent configuration files that users can audit and verify.

The top browsers that comprehensively document and control cookies, DNS, WebRTC, telemetry, and link tracking are detailed below:

1. Mullvad Browser

Developed in collaboration with the Tor Project and Mullvad VPN , this browser is built specifically to bring Tor Browser’s high-level anti-tracking and anti-fingerprinting protections to regular VPN usage.

• Cookies: Implements strict first-party isolation and automatically clears cookies/site data upon closing.
• DNS: Configured out-of-the-box to use encrypted DNS-over-HTTPS (DoH) via Mullvad without fallback, fully visible and toggleable in settings.
• WebRTC: WebRTC is disabled by default at the source code/pref level to prevent local and public IP address leaks.
• Telemetry: Completely stripped of telemetry, diagnostic reporting, and auto-updates tied to corporate data collection.
• Link Tracking: Mitigated via strict referrer truncation and tracking parameter stripping inherited from upstream Tor/Mozilla hardening.
• Verification: You can audit their exact specifications on the official Mullvad Browser Hard Facts Documentation.

2. LibreWolf

LibreWolf is an independent, community-driven fork of Firefox focused entirely on privacy, security, and freedom from telemetry.

• Cookies: Uses partitioned storage and Total Cookie Protection (Dynamic First-Party Isolation / dFPI), alongside automatic clearing of cookies and cache upon browser exit.
• DNS: Supports native DNS-over-HTTPS (DoH) configurations that can be routed through secure providers directly in the settings panel.
• WebRTC: Disabled by default to stop peer-to-peer connections from exposing real IP addresses behind a VPN or proxy.
• Telemetry: Completely stripped of Firefox telemetry, data collection, crash reports, and recommended add-on spam.
• Link Tracking: Features built-in enhanced tracking protection and works natively with pre-installed uBlock Origin to aggressively block tracking scripts and link query parameters.
• Verification: Every patch, build flag, and preference change (about:config ) is openly detailed on the LibreWolf Documentation Features Page.

3. Brave Browser

Unlike Firefox-based forks, Brave uses Chromium as its base but heavily rewrites the internal networking and shield layers to strip Google telemetry and block trackers natively.

• Cookies: Features granular cookie controls, strict cross-site cookie blocking, and automatic bounce-tracking/link-decoration mitigation (Brave Shields).
• DNS: Fully configurable Secure DNS (DoH) settings supporting custom providers under Settings > Privacy and Security.
• WebRTC: Exposes the WebRTC IP Handling Policy directly in settings, allowing users to select "Disable Non-Proxied UDP" to prevent IP leaks.
• Telemetry: Offers a transparent master kill-switch to opt out of all P3A (Privacy-Preserving Product Analytics) and diagnostic telemetry during setup and via settings.
• Link Tracking: Includes automatic stripping of tracking parameters (like fbclid, utm_source , etc.) from shared or clicked URLs.
• Verification: Documented in detail via the open-source repository and user-facing toggles in brave://settings/privacy.

If you'd like, I can:

• Compare these options based on performance and website compatibility
• Provide a guide on how to harden standard Mozilla Firefox via about:config to match these behaviors

If by “document protections” you mean the browser’s own documentation explicitly describes the control and a user can inspect/change it in the browser, rather than relying on marketing claims, the strongest matches are:

• Mullvad Browser's DNS behavior is particularly tied to how you configure your network/VPN; its documentation explicitly discusses DNS-leak verification rather than claiming the browser alone solves every DNS scenario.

Best match: Mullvad Browser

Mullvad is unusually explicit about the underlying implementation. Its documentation says telemetry and crash reporting are disabled at compile time, with the telemetry-sending executable removed. It also documents private browsing by default, isolated third-party cookies, URL-tracking-parameter stripping through uBlock Origin, and an extension that lets users check for IP, WebRTC and DNS leaks.

That makes it the best choice if your criterion is “show me what protection exists and give me something I can verify.”

Firefox: best for inspectable settings

Firefox has exceptionally good user-facing documentation for its privacy controls. Its Privacy & Security settings expose:

• Total Cookie Protection / Enhanced Tracking Protection for isolating and blocking tracking cookies.
• DNS-over-HTTPS, with selectable protection levels including Custom and Off.
• Data Collection and Use controls for telemetry/diagnostics.
• Fine-grained privacy settings in about:config.
• WebRTC-related controls, although completely disabling WebRTC requires an advanced configuration rather than a normal Privacy & Security checkbox.

Firefox's current documentation is particularly good if your priority is being able to audit the actual setting yourself, rather than accepting a browser vendor's single “privacy” switch.

Brave: strong built-in protections

Brave documents its Shields as blocking trackers, cross-site cookies and fingerprinting, with additional protections against things such as bounce tracking. The Shields panel also lets users see some of what was blocked.

Brave also exposes Secure DNS and a WebRTC IP Handling Policy in settings.

Its current privacy policy is also unusually specific about what browser-related information Brave does and doesn't collect; it states that Brave does not collect or retain users' browsing history.

DuckDuckGo: strongest on link tracking

DuckDuckGo is the clearest documented choice if link tracking is one of your key criteria. Its Web Tracking Protection documentation explicitly describes removal of tracking parameters from URLs, alongside third-party tracker blocking, CNAME-cloaking protection, cookie protections and GPC.

However, I wouldn't rank it first for your entire five-part checklist because its documentation is less centered on giving users an equivalent, inspectable control for DNS and WebRTC.

Bottom line: if you mean “which browsers let a technically minded user verify the privacy mechanisms rather than merely trust a privacy claim?”, I'd rank them Mullvad Browser → Firefox → Brave → DuckDuckGo. Mullvad is strongest for a privacy-by-design configuration; Firefox is strongest for transparent, user-adjustable settings.

Privacy-focused browsers that clearly document and display user-verifiable protections for cookies, DNS, WebRTC, telemetry, and link tracking in their settings menus include Brave, LibreWolf, Mullvad Browser , and Mozilla Firefox.

Here is how each browser structures these exact protections within its user interface so you can easily verify them.

1. Brave Browser

Built on Chromium, Brave Browser provides clean, centralized toggles for all five vectors under Settings:

• Cookies: Settings -> Shields . You can verify cookie protections via the "Upgrade connections to HTTPS" and "Block cross-site cookies" dropdowns.
• DNS: Settings -> Privacy and security -> Security . Toggle on "Use secure DNS" to choose your provider.
• WebRTC: Settings -> Privacy and security . Locate the "WebRTC IP handling policy" dropdown and verify it is set to "Default public interfaces only" or "Disable non-proxied UDP".
• Telemetry: Settings -> Privacy and security . Ensure "Automatically send usage statistics and crash reports to Brave" is toggled off.
• Link Tracking: Settings -> Shields . Verify that "Copy Clean Link" and "Strip tracking parameters from URLs" are active.

2. LibreWolf

LibreWolf is a community-maintained fork of Firefox stripped of telemetry and hardened by default. You can verify its native toggles under Settings:

• Cookies: Settings -> Privacy & Security -> Enhanced Tracking Protection . Set to "Strict" by default, isolating cookies.
• DNS: Settings -> General -> Network Settings (Settings button). Check the box for "Enable DNS over HTTPS".
• WebRTC: Settings -> LibreWolf . The browser includes a dedicated "Enable WebRTC" checkbox toggle to quickly turn it off or on.
• Telemetry: Settings -> Privacy & Security -> LibreWolf Data Collection and Use . All checkboxes here are stripped out or permanently disabled.
• Link Tracking: Settings -> Privacy & Security -> Enhanced Tracking Protection . Look for "Strip query parameters" under tracking protections.

3. Mullvad Browser

Developed in collaboration with the Tor Project, Mullvad Browser focuses heavily on advanced anti-fingerprinting.

• Cookies: Settings -> Privacy & Security . Uses "Strict" mode natively to wipe cookies when the window closes.
• DNS: Settings -> Privacy & Security -> Security . Scroll to "DNS over HTTPS" to verify your secure provider status.
• WebRTC: Built into Mullvad's core settings. WebRTC is forcibly blocked in its default state to prevent public IP leaks.
• Telemetry: Settings -> Privacy & Security . Mullvad has a completely blank telemetry section as data collection code is entirely omitted.
• Link Tracking: Built natively into its UBlock Origin extension integration and advanced tracking protections found in Privacy & Security.

4. Mozilla Firefox

While Firefox requires manual tightening compared to the others, it explicitly documents and surfaces all these options in its main menu.

• Cookies: Settings -> Privacy & Security . Select "Strict" to turn on Total Cookie Protection.
• DNS: Settings -> Privacy & Security . Scroll to the bottom to find "DNS over HTTPS" and select Max or Increased protection.
• WebRTC: Unlike the others, Firefox requires navigating to about:config in the URL bar. Search for media.peerconnection.enabled and toggle it to False.
• Telemetry: Settings -> Privacy & Security -> Firefox Data Collection and Use . Uncheck all boxes to prevent telemetry.
• Link Tracking: Settings -> Privacy & Security . Under Enhanced Tracking Protection, ensure "Strip query parameters" is checked.

Feature Verification Matrix

If you want to choose the right browser for your specific workflow, tell me:

• What operating system do you use?
• Do you rely on Chrome/Firefox extensions?
• Is browsing speed or maximum anonymity your top priority?