Basilisk
Pale Moon's XUL sibling.
From the same code family as Pale Moon: a more Australis-era Firefox look with XUL extension support on the Goanna engine. For a very specific kind of nostalgia.
- Engine
- Goanna
- License
- Open source
- Runs on
- Windows, Linux
- Top marks
- Classic interface, Open source, Independence
- Updated
- September 2026
Why it shines
- XUL extensions on a 2017-style UI
- Lighter than modern Firefox
Worth knowing
- Same modern-web compatibility limits as Pale Moon
- Maintained by a very small team
Origins
Basilisk belongs to The Mozilla family — descended from Goanna.
Scorecard
- Tracking protection0/3
- Fingerprinting resistance0/3
- Anonymity0/3
- Built-in ad blocking0/3
- Customization2/3
- Keyboard control0/3
- Built-in tools0/3
- Minimal interface0/3
- Fresh design0/3
- Classic interface3/3
- Light on resources2/3
- Raw speed0/3
- Battery efficiency0/3
- Extension ecosystem1/3
- Cross-device sync0/3
- Site compatibility1/3
- Low maintenance1/3
- Open source3/3
- Independence3/3
- Built-in AI0/3
- Gaming features0/3
- Dev tooling0/3
0–3 on each of the 22 criteria the quiz and the guides rank by. How we score.
