Frint Browser 🛡️

Privacy-first. Telemetry-free. Yours.

Frint is a privacy-focused web browser built on Qt6 WebEngine, with a comprehensive privacy engine that blocks trackers, ads, and fingerprinting — right out of the box.

Features

🔒 Privacy Engine

• Tracker Blocker — Blocks 200+ known tracking domains (Google Ads, Facebook/Meta, DoubleClick, Criteo, Taboola, and more)
• URL Parameter Cleaner — Strips 80+ tracking parameters from URLs (fbclid, gclid, utm_*, _hsenc, and more)
• GPC (Global Privacy Control) — Sends Sec-GPC: 1 and DNT: 1 headers on every request
• HTTPS-Only Mode — Upgrades all http:// connections to https://
• DNS-over-HTTPS (DoH) — Encrypted DNS via Cloudflare by default
• Anti-Fingerprinting — JavaScript injection spoofs Canvas, WebGL, AudioContext, fonts, timezone, hardware info, and more
• WebRTC IP Leak Protection — Blocks real IP discovery via WebRTC
• ETag & Cache Tracking Protection — Strips cache-based tracking identifiers
• Client Hints Blocking — Removes Sec-CH-UA-* headers
• Permission Auto-Deny — All camera, mic, geolocation, and notification requests are denied by default
• No Persistent Cookies — Session-only cookies, wiped on exit

🎨 Liquid Glass UI

• Glassmorphism design with semi-transparent elements
• Three dark themes (Catppuccin Mocha, Nord Dark, Gruvbox Material)
• Custom CSS overrides
• Smooth entrance animation

📦 Built-in Extension Support

• Dark Reader
• uBlock Origin Lite (compat)
• Privacy Badger (compat)

🗂️ Profile Management

• Isolated browsing profiles with separate data
• Quick profile switching
• Complete data deletion

Screenshots

Coming soon

Installation

Prerequisites

• Qt 6.6+ (Core, Widgets, Gui, Network, WebEngineWidgets)
• CMake 3.20+
• Ninja build system
• C++20 capable compiler (GCC 12+ / Clang 14+)

Build from source

# Clone
git clone https://github.com/qfdevel/Frint-Browser.git
cd Frint

# Build with Makefile
make

# Or with CMake directly
mkdir build && cd build
cmake .. -G Ninja
ninja

# Run
./build/bin/frint_browser

Install system-wide

sudo make install

Usage

First Run

The setup wizard will guide you through:

1. Language selection (11 languages)
2. Theme selection
3. Profile creation
4. Privacy tutorial

Privacy Menu

Access quick privacy toggles from the Privacy menu:

• Toggle tracker blocker
• Toggle HTTPS-only
• Toggle GPC
• Toggle fingerprint defense
• Toggle anti-fingerprinting JS
• Toggle WebRTC blocking
• Toggle ETag stripping

Settings Dialog

Press the hamburger menu (☰) → Settings to access all options:

• General — Home page, search engine, clear-on-exit
• Privacy — Core privacy controls
• 🔐 Advanced — Individual fingerprinting toggles (Canvas, WebGL, Audio, Font, HW concurrency, etc.)
• 📊 Dashboard — Privacy score, session statistics, clear data, export report
• Appearance — Theme selection, font size, custom CSS
• Profiles — Profile management, danger zone
• 🔄 Updates — Download location, update checking
• 📋 Extensions — Enable/disable extensions
• ℹ️ About — Version information, GitHub link

Keyboard Shortcuts

| Shortcut | Action | |----------|--------| | Ctrl+T | New tab | | Ctrl+W | Close tab | | Ctrl+R | Reload | | Ctrl+L | Focus address bar | | Ctrl+Q | Quit | | Ctrl+= / Ctrl+- | Zoom in/out | | Ctrl+0 | Reset zoom | | Alt+Left / Alt+Right | Back / Forward | | Alt+Home | Home page | | F6 | Focus address bar | | F11 | Full screen | | F12 | DevTools |

Project Structure

Frint/
├── CMakeLists.txt        # CMake build configuration
├── Makefile              # Convenience build wrapper
├── resources.qrc         # Qt resource bundle
├── src/
│   ├── main.cpp          # Entry point, first-run wizard
│   ├── browser_window.*  # Main window, toolbar, menus, animations
│   ├── web_view.*        # WebEngine view, privacy integration
│   ├── settings_dialog.* # Settings UI (9 tabs)
│   ├── settings_manager.*# Persistent settings (QSettings)
│   ├── setup_wizard.*    # First-run wizard
│   ├── privacy/
│   │   ├── url_cleaner.*           # Tracking URL parameter stripping
│   │   ├── tracking_blocker.*      # Known tracker domain blocking
│   │   ├── gpc_header.*            # GPC/DNT headers
│   │   ├── referrer_policy.*       # Strict referrer policy
│   │   ├── dns_resolver.*          # DNS-over-HTTPS resolver
│   │   ├── fingerprinting_defender.*# User-agent spoofing
│   │   └── privacy_url_interceptor.*# Request-level interceptor
│   └── storage/
│       └── storage_partition.*     # Storage isolation
├── resources/
│   ├── privacy/
│   │   ├── anti_fingerprint.js     # Anti-fingerprinting script
│   │   ├── cosmetic_blocker.js     # Ad-blocking CSS injection
│   │   ├── tracking_domains.txt    # 25K tracking domains list
│   │   ├── tracking_params.txt     # 41K tracking parameters list
│   │   └── user_agents.txt         # User-agent spoofing list
│   ├── fonts/                      # Bundled fonts (Inter, JetBrains Mono)
│   ├── icons/                      # Application icons
│   ├── help/                       # Onboarding pages
│   └── samples/                    # Demo HTML pages
├── store/
│   ├── themes/            # Theme CSS files
│   ├── extensions/        # Bundled extensions
│   └── store.json         # Extension store manifest
├── configs/
│   └── default_prefs.json # Default settings
└── logo/
    └── logo.png           # Application logo

Privacy Test Results

Frint aims for maximum scores on all major privacy testing tools:

• Cover Your Tracks (EFF) — Full protection against all tracking categories
• Ad Blocker Test (turtlecute.org) — Blocks ads, analytics, social trackers, error trackers, OEM trackers, and more
• DNS Leak Test — All DNS queries through encrypted DoH

Trackers Blocked

• Google Ads/DoubleClick ecosystem
• Facebook/Meta pixels
• Twitter/X analytics
• Amazon ad systems
• Microsoft/Bing ads
• Adobe Audience Manager
• AppNexus/Xandr
• Criteo, Taboola, Outbrain
• LinkedIn, TikTok, Pinterest, Reddit, Snapchat
• Yahoo, Yandex, Unity Ads
• Media.net, AdColony
• Google Analytics, Hotjar, MouseFlow, LuckyOrange, FreshWorks
• BugSnag, Sentry, Rollbar, Datadog
• All major error trackers and analytics platforms

License

GNU General Public License v3.0 — see LICENSE for details.

Contributing

See CONTRIBUTING.md for guidelines.

Support

• GitHub Issues: github.com/qfdevel/Frint-Browser/issues
• GitHub Repository: github.com/qfdevel/Frint-Browser

Built with Qt ${QT_VERSION_STR} and the Frint Privacy Engine