i18n/i18n/pl/desktop-browsers.md

---
meta_title: "Przeglądarki internetowe na PC i Mac respektujące prywatność - Privacy Guides"
title: "Przeglądarki desktopowe"
icon: material/laptop
description: Te przeglądarki chroniące prywatność są obecnie zalecane do standardowego / nieanonimowego przeglądania Internetu na komputerach stacjonarnych.
cover: desktop-browsers.webp
schema:
  - 
    "@context": http://schema.org
    "@type": WebPage
    name: Rekomendacje przeglądarek desktopowych
    url: "./"
    relatedLink: "../mobile-browsers/"
  - 
    "@context": http://schema.org
    "@type": SoftwareApplication
    name: Mullvad Browser
    image: /assets/img/browsers/mullvad_browser.svg
    url: https://mullvad.net/pl/download/browser
    applicationCategory: Web Browser
    operatingSystem:
      - Windows
      - macOS
      - Linux
    subjectOf:
      "@type": WebPage
      url: "./"
  - 
    "@context": http://schema.org
    "@type": SoftwareApplication
    name: Firefox
    image: /assets/img/browsers/firefox.svg
    url: https://firefox.com
    sameAs: https://pl.wikipedia.org/wiki/Firefox
    applicationCategory: Web Browser
    operatingSystem:
      - Windows
      - macOS
      - Linux
    subjectOf:
      "@type": WebPage
      url: "./"
  - 
    "@context": http://schema.org
    "@type": SoftwareApplication
    name: Brave
    image: /assets/img/browsers/brave.svg
    url: https://brave.com
    sameAs: https://pl.wikipedia.org/wiki/Brave_(przegl%C4%85darka)
    applicationCategory: Web Browser
    operatingSystem:
      - Windows
      - macOS
      - Linux
    subjectOf:
      "@type": WebPage
      url: "./"
---

<small>Protects against the following threat(s):</small>

- [:material-account-cash: Surveillance Capitalism](basics/common-threats.md#surveillance-as-a-business-model ""){.pg-brown}

To są obecnie zalecane przez nas **przeglądarki internetowe** i konfiguracje dla przeglądania standardowego/nieanonimowego. Polecamy [Mullvad Browser](#mullvad-browser), jeśli koncentrujesz się na silnej ochronie prywatności i ochronie przed odciskami palców po instalacji, [Firefox](#firefox) dla standardowego przeglądania internetu jako dobra alternatywa dla Google Chrome, oraz [Brave](#brave), jeśli potrzebujesz kompatybilności z przeglądarką Chromium.

Jeśli chcesz przeglądać Internet anonimowo, powinieneś użyć [Tor](tor.md). Na tej stronie przedstawiamy pewne zalecenia dotyczące konfiguracji, ale wszystkie przeglądarki inne niż Tor Browser będą w taki czy inny sposób śledzone przez *kogoś*.

## Przeglądarka Mullvad

<div class="admonition recommendation" markdown>

![Mullvad Browser logo](assets/img/browsers/mullvad_browser.svg){ align=right }

**Mullvad Browser** is a version of [Tor Browser](tor.md#tor-browser) with Tor network integrations removed. It aims to provide to VPN users Tor Browser's anti-fingerprinting browser technologies, which are key protections against [:material-eye-outline: Mass Surveillance](basics/common-threats.md#mass-surveillance-programs){ .pg-blue }. Jest on rozwijany przez Tor Project i dystrybuowany przez [Mullvad](vpn.md#mullvad) i **nie** wymaga korzystania z VPN Mullvad.

[:octicons-home-16: Homepage](https://mullvad.net/en/browser){ .md-button .md-button--primary }
[:octicons-eye-16:](https://mullvad.net/en/help/privacy-policy){ .card-link title="Privacy Policy" }
[:octicons-info-16:](https://mullvad.net/en/help/tag/mullvad-browser){ .card-link title="Documentation" }
[:octicons-code-16:](https://gitlab.torproject.org/tpo/applications/mullvad-browser){ .card-link title="Source Code" }

<details class="downloads" markdown>
<summary>Downloads</summary>

- [:fontawesome-brands-windows: Windows](https://mullvad.net/en/download/browser/windows)
- [:simple-apple: macOS](https://mullvad.net/en/download/browser/macos)
- [:simple-linux: Linux](https://mullvad.net/en/download/browser/linux)

</details>

</div>

Like [Tor Browser](tor.md), Mullvad Browser is designed to prevent fingerprinting by making your browser fingerprint identical to all other Mullvad Browser users, and it includes default settings and extensions that are automatically configured by the default security levels: *Standard*, *Safer* and *Safest*.

Therefore, it is imperative that you do not modify the browser at all outside adjusting the default [security levels](https://tb-manual.torproject.org/security-settings). When adjusting the security level, you **must** always restart the browser before continuing to use it. Otherwise, [the security settings may not be fully applied](https://www.privacyguides.org/articles/2025/05/02/tor-security-slider-flaw/), putting you at a higher risk of fingerprinting and exploits than you may expect based on the setting chosen.

Modifications other than adjusting this setting would make your fingerprint unique, defeating the purpose of using this browser. Jeśli chcesz bardziej skonfigurować swoją przeglądarkę, a fingerprinting nie jest dla Ciebie problemem, zalecamy zamiast tego [Firefox](#firefox).

### Ochrona przed fingerprintingiem

**Bez** korzystania z [VPN](vpn.md), przeglądarka Mullvad zapewnia taką samą ochronę przed [naiwnymi skryptami fingerprintingu](https://github.com/arkenfox/user.js/wiki/3.3-Overrides-%5BTo-RFP-or-Not%5D#-fingerprinting) jak inne prywatne przeglądarki, takie jak Firefox+[Arkenfox](#arkenfox-advanced) lub [Brave](#brave). Przeglądarka Mullvad zapewnia te zabezpieczenia po instalacji, kosztem pewnej elastyczności i wygody, które mogą zapewnić inne prywatne przeglądarki.

== Aby uzyskać najsilniejszą ochronę przed odciskami palców, zalecamy korzystanie z Mullvad Browser w połączeniu **z** VPN==, niezależnie od tego, czy jest to Mullvad, czy inny zalecany dostawca VPN. Korzystając z VPN z Mullvad Browser, będziesz współdzielić odcisk palca i pulę adresów IP z wieloma innymi użytkownikami, dając ci "tłum", w który możesz się wtopić. Ta strategia jest jedynym sposobem na udaremnienie zaawansowanych skryptów śledzących i jest to ta sama technika anty-fingerprint, którą stosuje przeglądarka Tor.

Należy pamiętać, że chociaż można korzystać z Mullvad Browser z dowolnym dostawcą VPN, inne osoby w tej sieci VPN muszą również korzystać z Mullvad Browser, aby ten "tłum" mógł istnieć, co jest bardziej prawdopodobne w przypadku Mullvad VPN w porównaniu z innymi dostawcami, szczególnie tak blisko uruchomienia Mullvad Browser. Mullvad Browser nie ma wbudowanej łączności VPN, ani nie sprawdza, czy korzystasz z VPN przed przeglądaniem; połączenie VPN musi być skonfigurowane i zarządzane osobno.

Przeglądarka Mullvad Browser jest dostarczana z preinstalowanymi rozszerzeniami przeglądarki *uBlock Origin* i *NoScript*. Chociaż zazwyczaj odradzamy dodawanie *dodatkowych* [rozszerzeń przeglądarki](browser-extensions.md), te rozszerzenia, które są fabrycznie zainstalowane z przeglądarką, **nie** powinny być usuwane ani konfigurowane poza ich domyślnymi wartościami, ponieważ spowodowałoby to zauważalne odróżnienie odcisku palca przeglądarki od innych użytkowników Mullvad Browser. </em> Przeglądarka jest również dostarczana z preinstalowanym rozszerzeniem przeglądarki Mullvad, które *można bezpiecznie usunąć bez wpływu na odcisk palca przeglądarki, ale można je również bezpiecznie pozostawić, nawet jeśli nie korzystasz z Mullvad VPN.</p>

### Tryb prywatny przeglądarki

Mullvad Browser działa w stałym trybie przeglądania prywatnego, co oznacza, że historia, pliki cookie i inne dane witryn będą zawsze czyszczone po każdym zamknięciu przeglądarki. Zakładki, ustawienia przeglądarki i ustawienia rozszerzeń zostaną zachowane.

Jest to wymagane, aby zapobiec zaawansowanym formom śledzenia, ale odbywa się kosztem wygody i niektórych funkcji Firefox'a, takich jak kontenery z wieloma kontami. Pamiętaj, że zawsze możesz korzystać z wielu przeglądarek, na przykład możesz rozważyć użycie Firefox + Arkenfox dla kilku witryn, na których chcesz pozostać zalogowany lub które nie działają poprawnie w Mullvad Browser, oraz Mullvad Browser do ogólnego przeglądania.

### Mullvad Leta

Mullvad Browser comes with [**Mullvad Leta**](https://leta.mullvad.net) as the default search engine, which functions as a proxy to either Google or Brave search results (configurable on the Mullvad Leta homepage).

If you are a Mullvad VPN user, there is some risk in using services like Mullvad Leta which are offered by your VPN provider themselves. This is because Mullvad theoretically has access to your true IP address (via their VPN) and your search activity (via Leta), which is information a VPN is typically intended to separate. Even though Mullvad collects very little information about their VPN subscribers or Leta users, you should consider a different [search engine](search-engines.md) if this risk concerns you.

## Firefox

<div class="admonition recommendation" markdown>

![Logo Firefox](assets/img/browsers/firefox.svg){ align=right }

**Firefox** zapewnia silne ustawienia prywatności, takie jak [wzmocniona ochrona przed śledzeniem](https://support.mozilla.org/pl/kb/wzmocniona-ochrona-przed-sledzeniem-firefox-desktop), które mogą pomóc zablokować różne [rodzaje śledzenia](https://support.mozilla.org/pl/kb/wzmocniona-ochrona-przed-sledzeniem-firefox-desktop#w_co-blokuje-wzmocniona-ochrona-przed-sledzeniem).

[:octicons-home-16: Homepage](https://firefox.com){ .md-button .md-button--primary }
[:octicons-eye-16:](https://mozilla.org/privacy/firefox){ .card-link title="Privacy Policy" }
[:octicons-info-16:](https://support.mozilla.org/products/firefox){ .card-link title="Documentation" }
[:octicons-code-16:](https://hg.mozilla.org/mozilla-central){ .card-link title="Source Code" }
[:octicons-heart-16:](https://donate.mozilla.org){ .card-link title="Contribute" }

<details class="downloads" markdown>
<summary>Downloads</summary>

- [:fontawesome-brands-windows: Windows](https://mozilla.org/firefox/windows)
- [:simple-apple: macOS](https://mozilla.org/firefox/mac)
- [:simple-linux: Linux](https://mozilla.org/firefox/linux)
- [:simple-flathub: Flathub](https://flathub.org/apps/details/org.mozilla.firefox)

</details>

</div>

<div class="admonition warning" markdown>
<p class="admonition-title">Ostrzeżenie</p>

Firefox zawiera unikalny [token pobierania](https://bugzilla.mozilla.org/show_bug.cgi?id=1677497#c0) w pobieraniach ze strony Mozilli i używa telemetrii w Firefox, aby wysłać token. Token **nie jest** zawarty w wydaniach z [Mozilla FTP](https://ftp.mozilla.org/pub/firefox/releases/).

</div>

### Zalecana konfiguracja przeglądarki Firefox

These options can be found in :material-menu: → **Settings**.

#### Wyszukiwarka

- [ ] Odznacz **Pokaż sugestie wyszukiwania**

Search suggestion features may not be available in your region.

Search suggestions send everything you type in the address bar to the default search engine, regardless of whether you submit an actual search. Disabling search suggestions allows you to more precisely control what data you send to your search engine provider.

##### Firefox Suggest (tylko USA)

[Firefox Suggest](https://support.mozilla.org/kb/firefox-suggest) is a feature similar to search suggestions which is only available in the US. We recommend disabling it for the same reason we recommend disabling search suggestions. If you don't see these options under the **Address Bar** header, you do not have the new experience and can ignore these changes.

- [ ] Odznacz **Sugestie z Firefox**
- [ ] Usuń zaznaczenie **Sugestie od sponsorów**

#### Prywatność i bezpieczeństwo

##### Udoskonalona ochrona przed śledzeniem

- [x] Wybierz **Ścisła** ochrona przed śledzeniem

This protects you by blocking social media trackers, fingerprinting scripts (note that this does not protect you from *all* fingerprinting), cryptominers, cross-site tracking cookies, and some other tracking content. ETP protects against many common threats, but it does not block all tracking avenues because it is designed to have minimal to no impact on site usability.

##### Wyczyść po zamknięciu

If you want to stay logged in to particular sites, you can allow exceptions in **Cookies and Site Data** → **Manage Exceptions...**

- [x] Zaznacz **Usuń pliki cookie i dane witryn po zamknięciu przeglądarki Firefox**

This protects you from persistent cookies, but does not protect you against cookies acquired during any one browsing session. When this is enabled, it becomes possible to easily cleanse your browser cookies by simply restarting Firefox. You can set exceptions on a per-site basis, if you wish to stay logged in to a particular site you visit often.

##### Telemetria

- [ ] Usuń zaznaczenie **Zezwalaj przeglądarce Firefox na wysyłanie danych technicznych i dotyczących interakcji do Mozilla**
- [ ] Usuń zaznaczenie **Zezwalaj przeglądarce Firefox na instalowanie i uruchamianie badań**
- [ ] Usuń zaznaczenie **Zezwalaj przeglądarce Firefox na wysyłanie raportów o awariach w Twoim imieniu**

According to Mozilla's privacy policy for Firefox,

> Firefox wysyła o nas dane o wersji i języku Firefoksa, systemie operacyjnym urządzeniach i konfiguracji sprzętowej, pamięci, podstawowe informacje o awariach i błędach oraz wynikach zautomatyzowanych procesów, takich jak aktualizacje, bezpieczne przeglądanie i aktywacja. Gdy przeglądarka Firefox wysyła nasze dane, adres IP użytkownika jest tymczasowo gromadzony w dziennikach serwera.

Additionally, the Mozilla Accounts service collects [some technical data](https://mozilla.org/privacy/mozilla-accounts). If you use a Mozilla Account you can opt out:

1. Otwórz ustawienia profilu [na accounts.firefox.com](https://accounts.firefox.com/settings#data-collection)
2. Usuń zaznaczenie **Gromadzenie i wykorzystywanie danych** > **Pomóż ulepszyć konta Firefox**

##### Website Advertising Preferences

- [ ] Uncheck **Allow websites to perform privacy-preserving ad measurement**

With the release of Firefox 128, a new setting for [privacy-preserving attribution](https://support.mozilla.org/kb/privacy-preserving-attribution) (PPA) has been added and [enabled by default](https://blog.privacyguides.org/2024/07/14/mozilla-disappoints-us-yet-again-2). PPA allows advertisers to use your web browser to measure the effectiveness of web campaigns, instead of using traditional JavaScript-based tracking. We consider this behavior to be outside the scope of a user agent's responsibilities, and the fact that it is disabled by default in Arkenfox is an additional indicator for disabling this feature.

##### HTTPS-Only Mode

- [x] Select **Enable HTTPS-Only Mode in all windows**

This prevents you from unintentionally connecting to a website in plain-text HTTP. Sites without HTTPS are uncommon nowadays, so this should have little to no impact on your day-to-day browsing.

##### DNS przez HTTPS

If you use a [DNS over HTTPS provider](dns.md):

- [x] Wybierz opcję **Maksymalna ochrona** i wybierz odpowiedniego dostawcę

Max Protection enforces the use of DNS over HTTPS, and a security warning will show if Firefox can’t connect to your secure DNS resolver, or if your secure DNS resolver says that records for the domain you are trying to access do not exist. This stops the network you're connected to from secretly downgrading your DNS security.

#### Synchronizacja

[Firefox Sync](https://hacks.mozilla.org/2018/11/firefox-sync-privacy) allows your browsing data (history, bookmarks, etc.) to be accessible on all your devices and protects it with E2EE.

### Arkenfox (zaawansowany)

<div class="admonition tip" markdown>
<p class="admonition-title">Korzystaj z przeglądarki Mullvad Browser do zaawansowanej ochrony przed odciskami palców</p>

[Mullvad Browser](#mullvad-browser) provides the same anti-fingerprinting protections as Arkenfox out of the box, and does not require the use of Mullvad's VPN to benefit from these protections. Coupled with a VPN, Mullvad Browser can thwart more advanced tracking scripts which Arkenfox cannot. Arkenfox still has the advantage of being much more flexible, and allowing per-site exceptions for websites which you need to stay logged in to.

</div>

The [Arkenfox project](https://github.com/arkenfox/user.js) provides a set of carefully considered options for Firefox. If you [decide](https://github.com/arkenfox/user.js/wiki/1.1-To-Arkenfox-or-Not) to use Arkenfox, a [few options](https://github.com/arkenfox/user.js/wiki/3.2-Overrides-[Common]) are subjectively strict and/or may cause some websites to not work properly—which you can [easily change](https://github.com/arkenfox/user.js/wiki/3.1-Overrides) to suit your needs. We **strongly recommend** reading through their full [wiki](https://github.com/arkenfox/user.js/wiki). Arkenfox also enables [container](https://support.mozilla.org/kb/containers#w_for-advanced-users) support.

Arkenfox only aims to thwart basic or naive tracking scripts through canvas randomization and Firefox's built-in fingerprint resistance configuration settings. It does not aim to make your browser blend in with a large crowd of other Arkenfox users in the same way Mullvad Browser or Tor Browser do, which is the only way to thwart advanced fingerprint tracking scripts. Remember that you can always use multiple browsers, for example, you could consider using Firefox+Arkenfox for a few sites that you want to stay logged in on or otherwise trust, and Mullvad Browser for general browsing.

## Brave

<div class="admonition recommendation annotate" markdown>

![Brave logo](assets/img/browsers/brave.svg){ align=right }

**Brave Browser** includes a built-in content blocker and [privacy features](https://brave.com/privacy-features), many of which are enabled by default.

Brave is built upon the Chromium web browser project, so it should feel familiar and have minimal website compatibility issues.

[:octicons-home-16: Homepage](https://brave.com){ .md-button .md-button--primary }
[:simple-torbrowser:](https://brave4u7jddbv7cyviptqjc7jusxh72uik7zt6adtckl5f4nwy2v72qd.onion){ .card-link title="Onion Service" }
[:octicons-eye-16:](https://brave.com/privacy/browser){ .card-link title="Privacy Policy" }
[:octicons-info-16:](https://support.brave.com){ .card-link title="Documentation" }
[:octicons-code-16:](https://github.com/brave/brave-browser){ .card-link title="Source Code" }

<details class="downloads" markdown>
<summary>Downloads</summary>

- [:simple-github: GitHub](https://github.com/brave/brave-browser/releases)
- [:fontawesome-brands-windows: Windows](https://brave.com/download)
- [:simple-apple: macOS](https://brave.com/download)
- [:simple-linux: Linux](https://brave.com/linux)
- [:simple-flathub: Flathub](https://flathub.org/apps/com.brave.Browser)

</details>

</div>

<div class="admonition warning" markdown>
<p class="admonition-title">Warning</p>

Brave adds a "[referral code](https://github.com/brave/brave-browser/wiki/Brave%E2%80%99s-Use-of-Referral-Codes)" to the file name in downloads from the Brave website, which is used to track which source the browser was downloaded from, for example `BRV002` in a download named `Brave-Browser-BRV002.pkg`. The installer will then ping Brave's server with the referral code at the end of the installation process. If you're concerned about this, you can rename the installer file before opening it.

</div>

### Recommended Brave Configuration

These options can be found in :material-menu: → **Settings**.

#### Shields

Brave includes some anti-fingerprinting measures in its [Shields](https://support.brave.com/hc/articles/360022973471-What-is-Shields) feature. We suggest configuring these options [globally](https://support.brave.com/hc/articles/360023646212-How-do-I-configure-global-and-site-specific-Shields-settings) across all pages that you visit.

Shields' options can be downgraded on a per-site basis as needed, but by default we recommend setting the following:

<div class="annotate" markdown>

- [x] Select **Aggressive** under *Trackers & ads blocking*

<details class="warning" markdown>
<summary>Use default filter lists</summary>

Brave allows you to select additional content filters within the internal `brave://adblock` page. We advise against using this feature; instead, keep the default filter lists. Używanie dodatkowych list sprawi, że będziesz się wyróżniał na tle innych użytkowników i może zwiększyć ryzyko ataku powierzchniowego jeśli w Brave znajduje się exploit i złośliwa reguła zostanie dodana do jednej z list, których używasz.

</details>

- [x] Select **Strict** under *Upgrade connections to HTTPS*
- [x] (Optional) Select **Block Scripts** (1)
- [x] Check **Block fingerprinting**
- [x] Select **Block third-party cookies**
- [x] Check **Forget me when I close this site** (2)
- [ ] Uncheck all social media components

</div>

1. This option disables JavaScript, which will break a lot of sites. To fix them, you can set exceptions on a per-site basis by clicking on the Shield icon in the address bar and unchecking this setting under *Advanced controls*.
2. If you wish to stay logged in to a particular site you visit often, you can set exceptions on a per-site basis by clicking on the Shield icon in the address bar and unchecking this setting under *Advanced controls*.

#### Privacy and security

<div class="annotate" markdown>

- [x] Select **Don't allow sites to use the V8 optimizer** under *Security* → *Manage V8 security* (1)
- [x] Select **Automatically remove permissions from unused sites** under *Sites and Shields Settings*
- [x] Select **Disable non-proxied UDP** under [*WebRTC IP Handling Policy*](https://support.brave.com/hc/articles/360017989132-How-do-I-change-my-Privacy-Settings#webrtc)
- [ ] Uncheck **Use Google services for push messaging**
- [x] Select **Auto-redirect AMP pages**
- [x] Select **Auto-redirect tracking URLs**
- [x] Select **Prevent sites from fingerprinting me based on my language preferences**

</div>

1. Disabling the V8 optimizer reduces your attack surface by disabling [*some*](https://grapheneos.social/@GrapheneOS/112708049232710156) parts of JavaScript Just-In-Time (JIT) compilation.

##### Tor windows

[**Private Window with Tor**](https://support.brave.com/hc/articles/360018121491-What-is-a-Private-Window-with-Tor-Connectivity) allows you to route your traffic through the Tor network in Private Windows and access .onion services, which may be useful in some cases. However, Brave is **not** as resistant to fingerprinting as the Tor Browser is, and far fewer people use Brave with Tor, so you will stand out. If your threat model requires strong anonymity, use the [Tor Browser](tor.md#tor-browser).

##### Data Collection

- [ ] Uncheck **Allow privacy-preserving product analytics (P3A)**
- [ ] Uncheck **Automatically send daily usage ping to Brave**
- [ ] Uncheck **Automatically send diagnostic reports**

#### Web3

Brave's Web3 features can potentially add to your browser fingerprint and attack surface. Unless you use any of these features, they should be disabled.

- Select **Extensions (no fallback)** under *Default Ethereum wallet*
- Select **Extensions (no fallback)** under *Default Solana wallet*

#### Extensions

- [ ] Uncheck all built-in extensions you don't use

#### Search engine

We recommend disabling search suggestions in Brave for the same reason we recommend disabling this feature in [Firefox](#search).

- [ ] Odznacz **Pokaż sugestie wyszukiwania**

#### System

<div class="annotate" markdown>

- [ ] Uncheck **Continue running apps when Brave is closed** to disable background apps (1)

</div>

1. This option is not present on all platforms.

#### Brave Sync

[Brave Sync](https://support.brave.com/hc/articles/360059793111-Understanding-Brave-Sync) allows your browsing data (history, bookmarks, etc.) to be accessible on all your devices without requiring an account and protects it with E2EE.

#### Brave Rewards and Wallet

**Brave Rewards** lets you receive Basic Attention Token (BAT) cryptocurrency for performing certain actions within Brave. It relies on a custodial account and KYC from a select number of providers. We do not recommend BAT as a [private cryptocurrency](cryptocurrency.md), nor do we recommend using a [custodial wallet](advanced/payments.md#wallet-custody), so we would discourage using this feature.

**Brave Wallet** operates locally on your computer, but does not support any private cryptocurrencies, so we would discourage using this feature as well.

## Kryteria

**Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.

### Wymagania minimalne

- Must be open-source software.
- Must support automatic updates.
- Must receive engine updates in 0-1 days from upstream release.
- Must be available on Linux, macOS, and Windows.
- Any changes required to make the browser more privacy-respecting must not negatively impact user experience.
- Must block third-party cookies by default.
- Must support [state partitioning](https://developer.mozilla.org/docs/Web/Privacy/State_Partitioning) to mitigate cross-site tracking.[^1]

### Best-Case

Our best-case criteria represents what we would like to see from the perfect project in this category. Our recommendations may not include any or all of this functionality, but those which do may rank higher than others on this page.

- Should include built-in content blocking functionality.
- Should support cookie compartmentalization (à la [Multi-Account Containers](https://support.mozilla.org/kb/containers)).
- Should support Progressive Web Apps (PWAs). PWAs enable you to install certain websites as if they were native apps on your computer. This can have advantages over installing Electron-based apps because PWAs benefit from your browser's regular security updates.
- Should not include add-on functionality (bloatware) that does not impact user privacy.
- Should not collect telemetry by default.
- Should provide an open-source sync server implementation.
- Should default to a [private search engine](search-engines.md).

[^1]: Brave's implementation is detailed at [Brave Privacy Updates: Partitioning network-state for privacy](https://brave.com/privacy-updates/14-partitioning-network-state).