Disabled the DOM filesystem API by default.Aligned CSS tab-size with the specification and un-prefixed it.Does not require walled-garden extension signing.Does not use Electrolysis (e10s, multi-process browsing).You can expect a familiar interface as-carried by Firefox between v29 and v56. Does not use Rust or the Photon user interface.Has some long-standing known issues with the Mozilla code-base fixed (e.g.As such XUL is alive and well in this browser and will not be deprecated. Builds on UXP, our XUL platform in development.e.g.: Goanna renders gradients in a more accurate color space (non-premultiplied). Goanna behaves slightly differently than Gecko in certain respects and may result in different display of web pages. Uses Goanna as a layout and rendering engine.Important differences with Mozilla Firefox: Support for modern web cryptography: up to TLS 1.3, modern ciphers, HSTS, etc.Support for advanced Graphite font shaping features.Please note that some Mozilla-specific WebExtension APIs are not yet available. Experimental support for WebExtensions (in gecko-target mode).Support for XUL/Overlay Mozilla-style extensions.Support for all NPAPI plugins (Unity, Silverlight, Flash, Java, authentication plugins, etc.).Full support for JavaScript's ECMAscript 6 standard for modern web browsing.Windows XP or Windows Vista are not supported. It aims to retain useful technologies that its sibling Firefox has removed. 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.īasilisk 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 a free and Open Source XUL-based web browser created by the developers of the Pale Moon browser.