Lykon Browser is an independent, privacy-focused web browser built on top of the Mozilla Gecko engine.
It is developed as an indie project with a strong emphasis on performance, security, and a clean, modern user experience.
Lykon Browser is not affiliated with or endorsed by Mozilla.
This repository contains the complete source code of Lykon Browser, including the Gecko engine source code, published in full compliance with the Mozilla Public License 2.0 (MPL 2.0).
All modifications and additions made as part of the Lykon project are also released under MPL 2.0.
This project includes source code from Mozilla Firefox, licensed under the Mozilla Public License 2.0.
- Mozilla Firefox is a trademark of the Mozilla Foundation.
- Lykon Browser is an independent project and is not associated with Mozilla.
See the following files for details:
MPL-2.0.txtLICENSE
Minimum Requirements
- RAM: 4 GB (8 GB recommended)
- Disk Space: At least 40 GB free
- Operating System: Windows 10 or later (fully updated)
Recommended
- SSD storage
- 16 GB RAM for faster builds
- Windows 11 with Win32 long paths enabled
⏱️ First-time setup can take 1–2 hours due to large downloads and build steps.
MozillaBuild provides all required tools such as Git, Python, Clang, Make, and other dependencies needed to build Gecko-based browsers.
Download MozillaBuild from: https://ftp.mozilla.org/pub/mozilla/labs/mozilla-build/
- Accept the default installation directory.
- If Windows prompts to “reinstall with correct settings”, accept it.
Start the MozillaBuild shell:
C:\mozilla-build\start-shell.bat2. Clone the Lykon Browser repository This step downloads and configures all required dependencies.
cd c:/
git clone https://github.com/thakurabhinav22/Lykon-Browser.git
cd Lykon-Browser3. Build Lykon Browser
./mach buildThe first build may take 15–30 minutes, depending on your system. On success, you will see: Your build was successful!
4.Run Lykon Browser
./mach runLearn More https://firefox-source-docs.mozilla.org/setup/windows_build.html
🎉 You are now running your locally built Lykon Browser.
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