Standalone installer · Full setup · Offline installer free download for Windows/macOS/Linux/FreeBSD
Browsers · v2026.04.15 · Open Source
Highly customizable, open source web browser
Link checked against Basilisk Browser's official domain on (automated check; catalog maintained by Avinash Verma, Editor).
License: Open Source
Size: 39-60 MB
Platforms: Windows macOS Linux FreeBSD
Updated:
Quick answer: downloading Basilisk Browser
Basilisk Browser is a Open Source web browser for Windows/macOS/Linux/FreeBSD from Basilisk Browser. Its official offline (standalone) installer is published as a direct EXE download and installs without an internet connection. Always download from the official source (basilisk-browser.org) — we link there directly and never host or modify the file.
Basilisk Browser Trust & Verification
External authoritative sources that identify and verify Basilisk Browser.
Publisher page with release builds, source archive, package links, and SHA256 checksums
Direct installer links are shown only when verified. Store and browser extension rows open the publisher-controlled official destination.
Source: official offline / standalone installer — the verified file above installs without an internet connection.
We do not host software files on our servers. All download links point to the official developer source or a trusted, verified mirror.
Basilisk Browser Overview
Basilisk is an open-source web browser for Windows and Linux from the Pale Moon team, intended as a development and testing platform for the Goanna engine while offering a more modern, Firefox-style interface than Pale Moon. It retains support for the legacy XUL/XPCOM extension system and NPAPI plugins that current Firefox has removed, which makes it useful for users who depend on older add-ons. Basilisk closely follows the Unified XUL Platform shared with Pale Moon, so it is not based on Firefox's current WebExtensions-only architecture and can load older add-ons that mainstream browsers can no longer run. The full offline installer contains the complete browser and installs without a connection. This page points to the genuine Basilisk Browser source from Basilisk Browser, not a third-party host.
Basilisk Browser Preview
Basilisk Browser — Browsers
Lead card by OfflineInstallerSetup. Logo and screenshots from the publisher's official sources and Wikipedia / Wikimedia Commons under their respective licenses.
Basilisk Browser Offline Installer Key Features
Goanna engine with a modern Firefox-style interface
Supports legacy XUL/XPCOM extensions and NPAPI plugins
Shares the Unified XUL Platform with Pale Moon
Maintained by the Pale Moon development team
Available for Windows and Linux
Basilisk Browser Standalone Installer System Requirements
Baseline requirements to run the current Basilisk Browser release:
Operating System
Windows 7 or later; macOS 10.7+ for Intel builds; Apple Silicon DMG for ARM Macs; Linux i686/x86_64/aarch64/LoongArch64; FreeBSD 13.5 x86_64
Memory (RAM)
2 GB minimum, 4 GB recommended
Disk Space
250 MB free space recommended after extraction or installation
Processor
x86, x86_64, ARM64, PowerPC, or LoongArch64 build matching the selected package
How to Install Basilisk Browser
Follow these steps to install Basilisk Browser offline on your PC:
1
Download the Basilisk Browser offline installer from the official source below.
2
Launch Basilisk Browser from your desktop or start menu — installation is complete.
Common Basilisk Browser Installation Issues & Fixes
Ran into a problem? Here are the most common issues and how to fix them:
⚠️
Basilisk Browser does not start after installation
✅
Check if your antivirus or firewall is blocking the application. Temporarily disable them and try launching Basilisk Browser again.
Basilisk Browser Offline Installer FAQ
How is Basilisk different from Pale Moon?
Both come from the same team and share the Goanna-based Unified XUL Platform, but Basilisk offers a more modern, Firefox-like interface and serves as a development/testing platform for the engine, while Pale Moon keeps a more classic interface. Both support legacy XUL extensions.
Does Basilisk support old Firefox add-ons?
Yes. Basilisk retains the legacy XUL/XPCOM add-on system and NPAPI plugin support that modern Firefox removed, which is the main reason users choose it over current mainstream browsers.
