Alternatives to Basilisk

Non-Chromium browser from the Pale Moon ecosystem that keeps XUL extensions. The listings below can replace it for an important use case. Each note says what changes if you switch.

The original

Replacements

Listings that take over the same core job as Basilisk.

  • Pale Moon

    Independent Firefox fork with the classic interface and XUL extension support.

    Pale Moon comes from the same ecosystem and keeps the pre-Quantum Gecko engine and XUL extensions, though its official binaries carry a separate branding licence.

  • SeaMonkey

    Classic internet suite combining a browser, email, feed reader, IRC client and HTML editor.

    SeaMonkey also tracks an older Mozilla codebase and bundles email, a feed reader, IRC and an HTML editor with the browser, while web compatibility still trails current browsers.

  • Waterfox

    A Firefox build with telemetry stripped out, ad blocking and encrypted DNS turned on from the start.

    Waterfox moves to a current Firefox base with telemetry removed and ad blocking on, so Firefox extensions replace the classic XUL extensions Basilisk runs.

  • Firefox

    The main browser not built on Chromium, with tracking protection turned on by default.

    Firefox gives current web compatibility and strong modern extension support with tracking protection by default, adds mobile builds, but drops the XUL extensions Basilisk keeps.

Similar software

Related functionality, not a direct replacement.