Piero Bosio Social Web Site Personale

@oblomov
Yes, it's a "hard fork" of Firefox.
Most of it is still Mozilla code from the days of Firefox 3 (Pale Moon started in 2009), but over the years and especially after Electrolysis (Firefox's multi-process architecture) things diverged so much they are completely different products.

Unfortunately people see "Firefox 3" and scream "old and insecure!!!" like it's a religious mantra, but the platform is developed to this day and you can use it as your primary browser just fine, like I do. In some cases it's even more secure than the rest: when there are issues with certificates or TLS you are warned instead of connecting at all costs, certain abusable javascript API are not implemented or intentionally crippled, etc.

@oblomov
> is there anything documenting the differences between palemoon librewolf or waterfox
Yes, there is. Librewolf and Waterfox are to Firefox what Vivaldi is to Chrome: the same browser with a different appearance and some built-in tools or settings.

@palemoon is completely independent, the dev team is re-implementing features in a privacy-preserving way instead of relying on existing "big tech" engines and it's effectively the only platform (UXP, powering other programs like Basilisk or Epyrus) that will survive if Mozilla were to disappear.
There's more to say but space is a bit limited here ^^;

These info are not centralized so one would need to look around to get the whole picture, but it's there all laid out.

Finally, a disclaimer to avoid misunderstandings: I develop and maintain extensions for Pale Moon, in addition to being an active user in the forum.