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.
Removed more telemetry code from the platform.
Updated libnestegg from upstream.
Updated ffvpx library from upstream.
Web dev: Make all arguments to init*Event() optional except the first.
Ported all applicable security fixes from Gecko/63 and intermediate point releases.
Fixed an issue in session storage scripting that might prematurely throw an error and interrupt session restore.
Resolved an issue with long menus not scrolling if a submenu was open.
Cleaned up and updated some installer code.
Made caret width normal/thick behind CJK char configurable.
Fixed an issue with table border scaling at various zoom levels.
Updated handling of multimedia (on-going).
Fixed a corner case behavioral issue when an Outlook-sourced mail message is dropped to the browser.
Removed the unfinished and disabled in-browser translation code.
Updated the Reader View components.
Added experimental AV1 support for WebM videos (disabled by default).
Note: This is limited to WebM videos only at the moment, so it will not yet work on MP4 videos or MSE streaming (e.g. YouTube).
Fixed an issue with CSS grid element sizing.
Updated sidebar conext menu behavior to be more in line with other browsers.
Fixed an issue where a separate content process could be launched despite e10s being disabled.
Disabled the reporting of CSS errors to the console by default to improve general performance.