Classic Firefox-like browser for legacy users
Basilisk is a free, open-source browser built for users who prefer a classic interface and need compatibility with older web technologies. Developed by M.C. Straver and the Basilisk Development Team, it’s available for Windows and runs on the Unified XUL Platform (UXP). The browser is designed to preserve support for traditional features like XUL extensions and NPAPI plugins, making it particularly useful for accessing legacy websites or tools no longer supported by mainstream browsers.
Designed for familiarity and flexibility
Basilisk's interface mimics older versions of Firefox, featuring a menu-driven layout and minimal UI changes. This makes it a comfortable transition for users who disliked the post-Quantum Firefox redesign or prefer straightforward, customizable navigation. It supports full theming, toolbar personalization, and extensions built on Mozilla's original XUL/XPCOM system. Legacy plugins like Greasemonkey, NoScript, and DownThemAll! still work here—something modern browsers no longer offer. However, users should be aware that these older plugins may pose security risks and aren't updated by current standards.
Focused on legacy web needs, not modern features
Performance-wise, Basilisk handles most everyday websites efficiently, although it may not match the optimization of mainstream Chromium-based browsers. It supports WebRTC, HTML5 media, and basic PDF viewing, but lacks modern conveniences like built-in sync, sandboxing, or hardware acceleration improvements. The browser doesn’t include features like performance analytics, built-in password managers, or cloud syncing. It's best suited for users who prioritize compatibility and control over speed or convenience. Since development is community-driven and niche, support is limited and updates may be infrequent.
Final thoughts
Basilisk stands out as a specialized browser for those who value legacy support and traditional design. It won't replace modern browsers for everyday tasks, but it's a reliable option for developers, hobbyists, or users who rely on outdated plugins and classic workflows. While it may not keep pace with web standards or security updates, it fills a unique role in the current browser landscape.
