Mullvad Browser For Extra Security!

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Introduction

In an age where every website seems eager to monitor, measure, and monetise us, the browser has become one of the most powerful data collection tools ever invented. Even if you use a VPN, your online footprint doesn’t disappear, your browser can still betray who you are through subtle identifiers known as fingerprints. That’s why the Mullvad Browser caught my attention from the start 🕵️. Developed in collaboration with the Tor Project, it’s not just another “private mode” option, but a browser built from the ground up to minimise tracking and make users blend into the digital crowd.

What makes it even more interesting is how it pairs with Mullvad VPN. On its own, the browser protects against trackers, scripts, and fingerprinting. Combined with a VPN that hides your IP address, it creates a layered defence that’s incredibly difficult for advertisers, data brokers, or even state-level surveillance to penetrate. It’s a rare example of privacy software that feels both robust and refreshingly simple to use.

Why Browsers Are the Weak Link in Online Privacy

Most people think a VPN is enough to stay private. I used to believe that too, until I started digging deeper into how browsers actually behave. Every time you visit a site, your browser sends an astonishing amount of data about you, from your device type and screen size to your installed fonts and system settings. This combination of details forms a unique signature, known as a fingerprint, that can identify you even if your IP address changes.

Then there are cookies, third-party trackers, advertising scripts, and analytics tags that follow you from site to site. Even the simplest web page can contain dozens of external requests, each gathering a little more information. I’ve tested countless browsers that claim to be private, but most still leak something, whether it’s telemetry data sent back to the developer or hidden tracking built into default search engines. The Mullvad Browser takes a radically different approach: instead of merely blocking trackers, it tries to make every user look the same.

The Philosophy Behind Mullvad Browser

At its core, the Mullvad Browser is built on a single principle: privacy through uniformity. Rather than trying to erase every trace of individuality, it gives everyone the same digital fingerprint. When millions of users share the same browser profile, it becomes nearly impossible for data brokers to distinguish one person from another. It’s a classic case of hiding in the crowd 🌐.

This philosophy aligns perfectly with Mullvad’s broader mission to “free the internet.” Just as their VPN hides your IP address and encrypts your traffic, the browser hides the subtle behavioural and technical clues that can still expose who you are. Both tools work together to attack the surveillance economy from two sides, the network layer and the browser layer. The result is a powerful synergy that makes your online life much harder to map or monetise.

The collaboration with the Tor Project is what gives the Mullvad Browser real credibility. Tor has spent two decades researching how websites track users and how those patterns can be disrupted. Instead of running on the Tor Network like the Tor Browser, the Mullvad Browser is designed to work with a VPN. That means you get the privacy-focused configuration of Tor without the slower connection speeds that onion routing can cause.

Design, Interface, and Ease of Use

When I first launched the Mullvad Browser, I was struck by how familiar it felt. Based on Mozilla’s Firefox, it keeps a clean and conventional layout, tabs across the top, a simple address bar, and a minimal toolbar. But under that simplicity, every setting has been fine-tuned for privacy. There’s no telemetry, no automatic data syncing, no browser account, and no suggestion algorithms feeding your data to the cloud.

Out of the box, the browser disables third-party cookies, blocks fingerprinting scripts, and uses privacy-preserving defaults that would take hours to replicate manually in a conventional browser. Even the small details are thoughtful: the browser window launches at a fixed size to prevent dimension-based fingerprinting, and JavaScript APIs that reveal hardware information are heavily restricted.

Mullvad Browser
A screenshot of the Mullvad Browser, which was developed in collaboration between the Tor Project and Mullvad VPN

All of this is done without making the browser feel restrictive or slow. Pages load quickly, compatibility is excellent, and extensions can be added carefully if you understand the privacy trade-offs. For most users, there’s no need to change anything, it’s already configured in the most private state possible.

How It Works With Mullvad VPN

Using a VPN hides your IP address, encrypts your connection, and prevents your internet service provider from seeing what you’re doing online. But it doesn’t stop websites from tracking you through cookies or browser fingerprints. That’s where the Mullvad Browser completes the puzzle 🧩.

When paired together, Mullvad VPN and Mullvad Browser create a double barrier. The VPN masks your location and network identity, while the browser removes the unique identifiers that would otherwise single you out. This combination means that even if someone tried to track you across multiple sessions or sites, they would see the same generic fingerprint shared by thousands of others, and no IP address that ties back to you.

In my tests, this pairing was remarkably effective. Advertising trackers failed to re-identify sessions, fingerprinting scripts produced near-identical results on different machines, and browser behaviour remained consistent across devices. It’s one of the closest things I’ve seen to practical online anonymity for everyday use.

Security Features and Privacy Controls

Security in the Mullvad Browser is not bolted on as an afterthought, it’s woven into the structure. It ships with strict HTTPS enforcement, ensuring all connections default to encryption whenever possible. It also includes integrated cookie isolation, which means that each site runs in its own separate context. When you close a tab, its associated cookies and storage vanish automatically. It’s like every browsing session gets a clean slate 🧼.

The browser also includes built-in fingerprinting resistance features. These work by standardising how the browser presents information to websites, for instance, by reporting the same system fonts and hardware details regardless of the device. This prevents the creation of unique identifiers. Combined with script blocking and anti-tracking measures, it leaves very little room for advertisers or data brokers to build a meaningful profile of your behaviour.

Unlike many browsers that collect telemetry for “improvement,” Mullvad gathers nothing. There are no usage reports, no crash logs being phoned home, and no hidden pings to remote servers. Every bit of data stays on your machine. Updates are signed and verified to ensure authenticity, and since the project is open source, anyone can inspect the code for themselves.

Performance and Everyday Use

Performance is often the compromise in privacy tools, but here it’s handled elegantly. Because the Mullvad Browser is built on the same foundation as Firefox ESR (Extended Support Release), it benefits from regular stability updates and the same rendering engine optimisations. Pages load smoothly, video playback is reliable, and the interface feels modern without the clutter of Chromium-based browsers.

I tested the browser with and without Mullvad VPN connected. With the VPN active, there was virtually no noticeable slowdown in everyday browsing. Pages that rely heavily on third-party scripts actually loaded faster because those scripts were blocked. The absence of tracking elements means less overhead and cleaner data flow. It’s one of those rare cases where more privacy actually improves the browsing experience 🚀.

Streaming platforms and web applications function without issue. The only times you might notice minor quirks are when sites use fingerprinting techniques to enforce logins or DRM checks. These rare instances are trade-offs inherent to all privacy browsers, but they’re minimal and easy to work around if needed.

Transparency and Open Source Collaboration

The partnership with the Tor Project isn’t just symbolic, it defines the credibility of the Mullvad Browser. The Tor team brought years of expertise in fingerprint resistance, isolation techniques, and privacy UI design. Meanwhile, Mullvad contributed its deep understanding of VPN infrastructure and threat modelling. The result is a product that inherits the best of both worlds: Tor’s rigorous privacy engineering and Mullvad’s pragmatic usability.

Everything about the browser is open source. You can inspect the code, verify updates, and even replicate the build process yourself. This level of openness creates a chain of trust between developer and user. There’s no hidden telemetry, no opaque data-sharing agreements, and no secret partnerships with advertisers. It’s software that invites inspection because it has nothing to hide 🔍.

Both Mullvad and the Tor Project have stated that their goal is not to dominate the browser market but to educate people about digital surveillance and offer a practical alternative. This honesty is refreshing in an industry where “privacy” is often used as a sales pitch rather than a philosophy.

Why Pairing the Browser and VPN Matters

Separately, Mullvad VPN and Mullvad Browser are excellent tools. Together, they form something more powerful, a unified privacy ecosystem. The VPN conceals your network identity, while the browser ensures your digital behaviour doesn’t betray you. Without one or the other, there are still gaps. With both, you gain near-complete resistance against the most common tracking methods used today.

Think of it like this: the VPN hides where your traffic comes from, and the browser hides who you appear to be. This dual-layer approach stops both surveillance points, the network observer and the website owner, from linking your activity to your identity. Few other setups offer this kind of coverage without requiring advanced technical knowledge.

I’ve tested many combinations of VPNs and browsers, but none have felt this cohesive. Because both tools are designed by teams that share the same philosophy, the integration feels seamless. The result is not only more private but also more comfortable for everyday users who don’t want to spend hours configuring settings or reading about scripts and cookies.

Limitations and Considerations

No privacy tool is perfect, and the Mullvad Browser is honest about that. If you log into a personal account, such as Gmail or Facebook, you are still voluntarily identifying yourself, no browser can prevent that. Likewise, extensions can introduce vulnerabilities if they aren’t carefully vetted. Mullvad’s documentation advises against adding unnecessary add-ons, and I strongly agree with that advice.

Another thing to understand is that the browser’s strategy of uniformity sometimes leads to visual quirks. You might notice extra grey margins around certain websites or minor layout inconsistencies. These are intentional design choices to enforce standard window dimensions and resist fingerprinting. It’s a small price to pay for stronger privacy, and you quickly get used to it.

Finally, while the browser can be used without the VPN, doing so limits its effectiveness. Without the VPN’s IP masking, websites can still associate your fingerprint with your real network address. For full protection, the two should always be used together 🔐.

Verdict

After weeks of using the Mullvad Browser, I can confidently say it’s one of the most impressive privacy tools available today. It doesn’t overwhelm you with options or false promises. Instead, it delivers thoughtful engineering designed to make mass tracking unprofitable and ineffective. Combined with Mullvad VPN, it becomes a formidable privacy setup that’s both elegant and practical.

What I admire most is the philosophy behind it. This is software built not to capture users but to empower them. It’s open source, transparent, and unashamedly idealistic, qualities that are increasingly rare in modern tech. For anyone serious about reclaiming their digital autonomy, this pairing represents one of the most honest and effective solutions available 🌍.

Frequently Asked Questions

Is the Mullvad Browser free to use?

Yes. The Mullvad Browser is completely free and open source. You don’t need a Mullvad VPN account to use it, though it works best when combined with the VPN.

How is it different from the Tor Browser?

Both browsers share the same privacy foundations, but the Mullvad Browser is designed to work with a VPN rather than the Tor Network. This provides better speed and usability while retaining strong privacy features.

Does it block ads and trackers automatically?

Yes. The browser blocks third-party cookies, tracking scripts, and fingerprinting technologies by default, without needing extra extensions.

Can I use the Mullvad Browser without a VPN?

You can, but it’s not recommended. Without a VPN, your IP address is still visible to websites and network providers. Using both together provides far stronger privacy.

Is it compatible with regular websites?

Yes. The Mullvad Browser is built on Firefox ESR, so it works with the vast majority of modern websites. You may occasionally notice minor layout adjustments due to its fingerprinting defences.

Can I install extensions?

Yes, but with caution. Extensions can weaken your privacy by adding unique identifiers. Only install those you trust and truly need.

Who developed the Mullvad Browser?

It was developed jointly by Mullvad and the Tor Project, combining expertise in VPN security and privacy-focused browser design.

Does the browser send telemetry or analytics data?

No. The Mullvad Browser sends no telemetry or usage data. It’s designed to operate entirely without tracking its users.

Is it suitable for beginners?

Absolutely. The browser is simple to use and requires no technical setup. Its defaults are already optimised for maximum privacy.

What’s the best way to stay private online?

Use the Mullvad Browser together with Mullvad VPN. The VPN hides your IP address, while the browser eliminates tracking and fingerprinting, giving you a balanced and effective privacy setup.

About The Author: Alex

Alia Simon (Alex) is a transatlantic tech writer and digital privacy advocate, known for blending sharp analysis with an approachable, conversational style. Whether reviewing a new VPN service, breaking down the fine print in privacy policies, or explaining the latest cybersecurity developments, Alia’s work is clear, engaging, and rooted in first-hand testing.

Originally from Milwaukee, Wisconsin, Alia grew up splitting his time between writing stories and tinkering with computers. His first taste of publishing came in high school, where he created a small tech-focused zine covering software reviews, security tips, and internet trends, a passion project that laid the foundation for his career. After earning a BA in Communications from the University of Wisconsin, Madison and an MA in Creative Writing from the University of Iowa, Alia developed a unique style that combines investigative depth with reader-friendly clarity.

He began his professional journey as a copywriter in Chicago, working with technology and gaming brands to produce content on everything from user experience design to online safety. Eventually, he shifted to full-time writing, contributing long-form guides, tutorials, and security explainers to leading tech and digital lifestyle publications. His work is distinguished by its focus on the end user, helping readers cut through jargon to understand how tools and policies affect them directly.

In 2014, Alia relocated to Berlin, Germany, immersing himself in Europe’s fast-evolving tech and online privacy scene. He worked as a content strategist for VPN providers and cybersecurity firms, producing bilingual resources in English and German. His ability to bridge the cultural and technical gap between US and European audiences has made his insights valuable to both consumers and industry insiders.

Since 2025, Alia has been part of the editorial team at VPNOnline.co.uk, where he tests VPN performance, evaluates privacy features, and keeps track of global digital rights legislation. Passionate about transparency and online safety, he actively promotes responsible internet use, regularly speaking at community events about secure browsing habits and emerging online threats.

Today, Alia lives in Berlin’s Kreuzberg district with his partner, Leonie, and their cat, Pixel. When he’s not running VPN speed tests or analysing encryption protocols, you’ll find him cycling along the Spree, exploring Berlin’s tech meetups, or hosting strategy board game nights for friends. For Alia, every review is more than just a score, it’s an opportunity to help readers protect their privacy and make smarter digital choices.