Basilisk is a free and Open Source XUL-based web browser, featuring the well-known Firefox-style interface and operation. It is based on the Goanna layout and rendering engine (a fork of Gecko) and builds on the Unified XUL Platform (UXP), which in turn is a fork of the Mozilla code base without Servo or Rust.
Basilisk as an application is primarily a vessel for development of the XUL platform it builds upon, and additionally a potential replacement for Firefox to retain the use of Firefox Extensions.
Basilisk is development software. This means that it should be considered more or less “beta” at all times; it may have some bugs and is provided as-is, with potential defects. Like any other Free Software community project, it comes without any warranty or promise of fitness for any particular purpose. That being said: of course we will do our best to provide an as stable and secure browser as possible with every official release of Basilisk.
It should be noted that because of this focus on platform development, the browser itself (the application code) will be released and maintained mostly as-it-is, with very little change or development on the user interface or browser front-end features.
Basilisk is a modern, full-featured web browser and as such requires a reasonably modern system to properly run.
Windows 7 or later. Windows XP or Windows Vista are not supported.
1GB of RAM (2GB or more recommended for heavy use).
Dedicated GPU strongly recommended.
A modern processor (must have SSE2 support as the absolute minimum)
This is a development and security release.
Added a preference (network.http.upgrade-insecure-requests) to allow disabling requests for opportunistic encryption.
Removed more telemetry code from the platform.
Added experimental support for the AV1 video codec for MP4 containers (disabled by default).
Cleaned up some media handling code, removing obsolete components for older target platforms.
Ported all applicable security fixes from Gecko/64. Most of these fixes were merely defense-in-depth.
Fixed a crash when using http pipelining over some broken proxies.
Enhanced the WebP decoder to properly handle animated lossy and lossless WebP.
Removed VR hardware support (both display and input types) from the platform.
Updated the GMP update service URL to improve compatibility with DRM-encumbered media.
Removed support for Firefox Accounts and changed the Sync client to work with Sync 1.1 (Weave).
The default server for using Sync is now the Pale Moon Sync server.
Please see this announcement on the forum for more details.
Updated NSPR to 4.20.
Updated NSS to 3.41, finalizing our platform support for TLS 1.3.
Fixed a spec compliance issue with the location.protocol setter.