I need a browser that blocks fingerprinting and does not send telemetry data.

Yes. If your two hard requirements are anti-fingerprinting and no browser telemetry, my first choice is Mullvad Browser.

Best choices

1. Mullvad Browser — best overall

• Developed by Mullvad and the Tor Project.
• Designed specifically to make users' browser fingerprints look alike.
• Blocks third-party trackers with uBlock Origin.
• Private browsing is enabled by default.
• Telemetry and crash reporting are disabled at compile time.
• Available for Windows, macOS, and Linux.
• You don't need Mullvad VPN to use it, although combining it with a trustworthy VPN gives you stronger IP privacy.

mullvad.net 2. LibreWolf — excellent alternative

• A hardened Firefox derivative.
• Explicitly removes Firefox telemetry, experiments, studies, and data collection.
• Uses Firefox's Resist Fingerprinting technology and additional privacy settings.
• Includes uBlock Origin and strict tracking protection.
• More configurable than Mullvad Browser, but that flexibility can actually make you more fingerprintable if you heavily customize it.

What I'd pick

Mullvad Browser if you want something you can install and use without spending hours hardening settings. Its whole design philosophy is essentially "make my browser look like everyone else's" rather than trying to create a unique, maximally locked-down configuration.

One important caveat: "no telemetry" doesn't mean "the browser makes zero network connections." Mullvad Browser still makes necessary connections for things such as updates, certificate handling, and filter-list updates; it simply doesn't send browser telemetry/crash-reporting data.

If you want maximum anonymity rather than just privacy, I'd choose Tor Browser instead. LibreWolf itself specifically warns against using LibreWolf over Tor because it can make you more distinctive; Tor Browser is designed for that use case.

If your priority is eliminating telemetry and aggressively combating browser fingerprinting without needing a PhD in browser hardening, a few standout options fit your threat model precisely.

Here are the best choices depending on how you plan to use them:

• Mullvad Browser: Developed in collaboration with the Tor Project (the creators of Tor Browser), this is designed specifically to bring Tor-level anti-fingerprinting protections to a standard, non-networked browser . It features zero telemetry , enforces strict letterboxing to mask your screen resolution , randomizes or standardizes fingerprintable APIs, and comes with uBlock Origin pre-installed . It works with any VPN (or no VPN at all), though it is optimized for privacy-first routing.
• LibreWolf: An independent, open-source fork of Firefox built completely out-of-the-box for privacy, security, and zero telemetry . It removes all Mozilla telemetry, crash reporters, and recommendation features. It also includes built-in fingerprinting mitigations (via enhanced tracking protection and custom patches) and clears cookies/site data upon closing by default. It feels and acts like a hardened version of Firefox without requiring manual about:config tweaks.
• Tor Browser: The ultimate choice if your threat model demands absolute anonymity rather than just privacy . It routes all traffic through the decentralized Tor network and makes every single user look identical to websites (defeating fingerprinting entirely). However, the routing makes it significantly slower for day-to-day media consumption or heavy web apps.

If you'd like, let me know:

• Will this be for daily general browsing or high-privacy sensitive tasks?
• Do you prefer a Firefox-based or Chromium-based interface and extension ecosystem?

I can help you pick the exact right install or configure one of them for your workflow.

If you want a browser that actively resists fingerprinting and strips out all telemetry, standard browsers like Chrome, Edge, and Vivaldi won't work . Even stock Firefox requires manual telemetry opt-outs and heavy configuration.

The best choices depend on whether you want an anonymous daily driver or an ultra-strict browsing environment:

• Mullvad Browser (Desktop) — Built in collaboration between the Tor Project and Mullvad VPN. It brings the gold standard of Tor's anti-fingerprinting protections to normal, everyday clearnet browsing without needing to route your traffic through the Tor network. It has zero telemetry and homogenizes your browser footprint so you look like everyone else using it.
• LibreWolf (Desktop) — An independent, privacy-hardened fork of Firefox. It comes with zero telemetry, removes Mozilla's Pocket and data reporting, features built-in uBlock Origin , and aggressively hardens privacy and anti-fingerprinting settings out of the box. It is much closer to a traditional daily-driver browser than Mullvad.
• Tor Browser (Desktop/Mobile) — The absolute peak of anti-fingerprinting and privacy. Every user has the exact same fingerprint because it masks screen resolution, blocks scripts by default, and randomizes/standardizes canvas and hardware reporting. The trade-off is slower speeds due to onion routing.
• Brave (Desktop/Mobile) — While Chromium-based, Brave features randomized fingerprinting protection that scrambles identification signals dynamically per-site rather than standardizing them. It also features a toggle to completely disable all diagnostic and telemetry data in the settings.

If you'd like, let me know:

• Is this for desktop or mobile?
• Do you need extension support (like password managers or specific plugins)?

I can help you choose the ideal fit for your workflow.

If your priorities are:

1. Strong anti-fingerprinting
2. No browser telemetry
3. Good privacy defaults

these are the browsers I’d look at:

1. Mullvad Browser — best match for your requirements

• Designed specifically to reduce browser fingerprinting by making many users look alike rather than unique.
• Developed with the Tor Project, using many Tor Browser anti-fingerprinting techniques, but without routing traffic through the Tor network by default.
• Mullvad states that it removed telemetry from the browser.
• Includes privacy extensions such as uBlock Origin and uses restrictive defaults.

Best for: someone who wants privacy without spending time hardening settings.

Trade-off: some websites may require extra steps, and it is less convenient for many logged-in accounts.

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2. Tor Browser — strongest anonymity

• Built around anonymity and anti-fingerprinting.
• Routes traffic through the Tor network.
• Uses a standardized browser configuration so users blend together.

Best for: anonymity, sensitive research, avoiding network-level tracking.

Trade-off: slower browsing and more website compatibility issues.

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3. Brave — best everyday browser

• Blocks trackers, third-party cookies, and fingerprinting attempts through Brave Shields.
• Has Chromium compatibility, so most Chrome extensions and websites work.
• Includes fingerprinting protections designed to prevent stable identification.

Best for: daily browsing where you want strong privacy without breaking many sites.

Trade-off: it is still a Chromium-based browser, and its privacy model differs from Tor/Mullvad’s “blend into the crowd” approach.

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4. Firefox with privacy hardening — best customizable option

A hardened Firefox setup can be very private, especially with:

• Enhanced Tracking Protection set aggressively
• telemetry disabled
• minimal extensions
• careful privacy settings

Best for: people who want control and an independent browser engine.

Trade-off: getting fingerprinting protection comparable to Mullvad/Tor requires more configuration.

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My recommendation

• Maximum fingerprint resistance + no telemetry: Mullvad Browser
• Maximum anonymity: Tor Browser
• Normal daily use with strong privacy: Brave
• Privacy + customization: Firefox hardened manually

Avoid Chrome, Edge, and most “privacy” browsers that are mainly Chrome wrappers if your goal is minimizing data collection.

• Enhanced Tracking Protection set aggressively
• telemetry disabled
• minimal extensions
• careful privacy settings

Best for: people who want control and an independent browser engine.

Trade-off: getting fingerprinting protection comparable to Mullvad/Tor requires more configuration.

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My recommendation

If you want a browser that natively strips telemetry and fights browser fingerprinting out of the box without requiring deep manual configuration, you have two standout open-source options depending on your workflow:

• Mullvad Browser — [Best for strict anti-fingerprinting] Co-developed by Mullvad VPN and the Tor Project, this browser ports the world-class fingerprint-resisting tech of the Tor Browser directly to the regular web (clearnet). It makes every user look identical to defeat hardware/canvas fingerprinting, features zero telemetry, and wipes cookies/history on close. Trade-off: It is designed to be ephemeral; adding extensions or heavily tweaking settings can break its uniform fingerprint. You can download it directly from the Mullvad Browser Official Site.
• LibreWolf — [Best for a persistent daily driver] An independent, open-source fork of Firefox that has all Mozilla telemetry, update pings, and pocket integration completely stripped out. It ships pre-hardened with strict privacy defaults, resistFingerprinting enabled, and uBlock Origin pre-installed. Unlike Mullvad, it functions much more like a traditional daily-driver browser where you can save logins and customize extensions, though aggressive defaults may require minor site-by-site tweaking. You can get it from the LibreWolf Official Website.
• Brave Browser — [Best for seamless usability] If the Tor-derived restrictions of Mullvad or LibreWolf feel too rigid, Brave is a Chromium-based alternative with zero telemetry (if you turn off optional reporting/rewards in settings) and built-in "Shields" that randomize aspects of your fingerprint and block trackers natively upon installation. You can grab it via the Brave Browser Download Page.

Would you prefer a convenient daily driver where you can stay logged into accounts easily (like LibreWolf or Brave), or do you need maximum anonymity where every session looks identical to outsiders (like Mullvad)?

If both anti-fingerprinting and zero browser telemetry are hard requirements, my top pick is Mullvad Browser.

Best options

• mullvad.net — Best overall for your requirements. It was developed by Mullvad and the Tor Project, uses Tor Browser's anti-fingerprinting approach, aims to make users look alike, and Mullvad explicitly says it has removed telemetry.
• librewolf.net — Best Firefox-based choice. It is designed specifically to remove telemetry/data collection and strengthen tracking and fingerprinting protection. It enables Firefox's Resist Fingerprinting technology and strict tracking protection by default.
• brave.com — Best mainstream/everyday option. Brave has strong built-in fingerprinting defenses and has removed Chrome-specific telemetry/reporting code. However, Brave itself does send optional privacy-preserving product-analytics reports by default, which you can disable in Settings, so it doesn't meet a literal "sends no telemetry" requirement as cleanly as Mullvad Browser or LibreWolf.

My recommendation

Mullvad Browser > LibreWolf > Brave for your stated requirements.

One important distinction: browser telemetry and website tracking are different. Even a zero-telemetry browser cannot prevent a website from receiving information you intentionally expose. Mullvad Browser's goal is to make your browser fingerprint resemble other users rather than giving each installation a distinctive fingerprint.

If you tell me whether you're on Windows, macOS, Linux, Android, or iPhone, I can recommend the best setup and the specific privacy settings to use.

If your priorities are:

1. Strong fingerprinting resistance
2. No telemetry / no “phone home” usage data
3. Trustworthy privacy defaults

these are the browsers I would consider:

My recommendation

• For the strongest anti-fingerprinting: use Mullvad Browser. Its goal is not to make your fingerprint random; it tries to make many users share the same fingerprint, which is generally a stronger defense against tracking.
• For everyday browsing with privacy: use LibreWolf or a carefully configured Firefox.
• For anonymity against a powerful observer: use Tor Browser.

A few privacy settings that matter regardless of browser:

• Avoid installing many extensions; extensions themselves can make your fingerprint unique.
• Disable telemetry, crash reporting, usage statistics, and “recommendations” features if present.
• Do not heavily customize an anti-fingerprinting browser; unusual settings can make you easier to identify.
• Use a privacy-respecting search engine if you want to reduce tracking beyond the browser.

For a single choice: Mullvad Browser for privacy-first use; LibreWolf for a normal daily driver.

To completely eliminate telemetry and protect against sophisticated browser fingerprinting, you should look beyond mainstream browsers like Chrome, Edge, or Safari, and even standard Firefox (which contains built-in telemetry).

The top browser options that match your exact requirements depend on how you intend to use them:

• Mullvad Browser — Best for strict anti-fingerprinting without Tor latency. Developed jointly by Mullvad VPN and the Tor Project, it takes the world-class anti-fingerprinting engine of Tor Browser and applies it to regular clearnet connections. It features zero telemetry, no accounts, and forces private mode by default (wiping cookies/history on close). Trade-off: It is designed not to save persistent data, making it less convenient as an all-day personal account manager.
• LibreWolf — Best independent, hardened daily driver. It is an independent, community-driven fork of Firefox designed with zero telemetry, data collection, or Pocket integration stripped out right from the source. It ships with uBlock Origin pre-installed and uses strict tracking protection defaults. Unlike Mullvad, it behaves like a normal browser where you can stay logged into accounts and save bookmarks. Trade-off: Its strict defaults can occasionally break interactive elements on complex websites, requiring manual whitelisting.
• Brave Browser — Best for everyday usability and compatibility. Brave is Chromium-based but heavily modified to strip out Google's backend telemetry, update services, and tracking hooks. Its built-in "Shields" feature blocks trackers and randomizes/resists fingerprinting out of the box while maintaining high compatibility with everyday websites and Chrome extensions. Trade-off: Some privacy purists prefer non-Chromium options, and you need to manually disable or ignore its optional crypto/AI features if you want a minimal footprint.
• Tor Browser — Best for maximum absolute anonymity. If your threat model requires hiding your IP address and physical location from network observers alongside fingerprinting defense, Tor Browser remains the gold standard. It routes all traffic through three encrypted relays globally, giving every single user an identical digital fingerprint. Trade-off: Connection speeds are slower due to the onion routing network.

If you can tell me whether you want a browser for daily account logins (passwords, extensions, history) or a strictly ephemeral session browser , I can help you choose between LibreWolf or Mullvad Browser.

Yes. Two strong choices are:

1. Mullvad Browser — my top pick

• Developed by Mullvad and the Tor Project.
• Strong anti-fingerprinting measures designed to make users' browser fingerprints look similar.
• Telemetry and crash reporting are disabled at compile time.
• uBlock Origin is included for tracker blocking.
• Private browsing is enabled by default, with cookies/cache/history cleared between sessions.
• Free, and you don't need Mullvad VPN to use it.

2. LibreWolf — excellent Firefox-based alternative

• Removes Firefox telemetry, studies, crash reporting, and personalized recommendations.
• Enables Resist Fingerprinting (RFP), Total Cookie Protection, strict tracking protection, and uBlock Origin by default.
• Particularly configurable if you want to lock things down further.
• One downside: LibreWolf doesn't currently have automatic updates, so you need to keep it updated yourself.

My recommendation: Start with Mullvad Browser if your priorities are anti-fingerprinting + zero browser telemetry with minimal configuration. Choose LibreWolf if you want more customization and a conventional Firefox-like experience.

One important distinction: neither browser can prevent websites themselves from collecting information. Anti-fingerprinting makes you harder to uniquely identify; tracker blocking limits other forms of tracking. And neither hides your IP address—use Tor or a trustworthy VPN if you need that too.

If you tell me your Windows/macOS/Linux platform, I can give you the most privacy-preserving setup for it.

When you want a browser that completely eliminates telemetry and resists or neutralizes fingerprinting out-of-the-box, you should look toward independent open-source projects rather than mainstream offerings.

The top recommendations tailored to zero telemetry and heavy anti-fingerprinting include:

• Mullvad Browser — Best for pure anti-fingerprinting. Developed in collaboration with the Tor Project, it delivers Tor-level fingerprint resistance and blocks telemetry completely, but is designed to run over your normal internet connection (and pairs nicely with a VPN) rather than the Tor network. It enforces strict privacy defaults and opens in a private-by-default state.
• LibreWolf — Best hardened Firefox alternative. It is an independent, community-maintained fork of Firefox built specifically to strip out all telemetry, crash reports, and data-collection pings. It comes with uBlock Origin pre-installed and features aggressive tracking and fingerprinting protections enabled by default.
• Brave Browser — Best for daily usability. A Chromium-based browser that completely turns off Google’s telemetry and features built-in Brave Shields to block trackers and dynamically randomize or mitigate browser fingerprinting characteristics. (Note: You will want to manually disable optional features like Brave Rewards and crypto wallets in the settings if you prefer a leaner footprint).
• Ungoogled Chromium — Best for Chromium purists. The open-source Chromium codebase with all Google web services, background pings, and telemetry hooks completely ripped out. It doesn't come with fancy UI privacy toggles, meaning it requires a bit more hands-on configuration.

If you'd like to narrow this down, let me know:

• Do you prefer a Firefox-based or Chromium-based foundation?
• Is this for daily multi-tab browsing with extensions, or a disposable/high-privacy session tool?

I can help you pick the exact fit and share any recommended configuration tweaks.