A little bit of history...

[Lotusisrael]

This may be slightly off-topic, but yet I am curious about something that may have some repercussions on my configuration, yet. I have read somewhere that Pale Moon as of today descends from Firefox 38, not early. I remember I so recently on this forum that a bug fixed implemented by Mozilla for Firefox was brought in Pale Moon as well. Does Pale Moon get some new, fresh code from Firefox, at times?

[Lootyhoof]

You should read: https://www.palemoon.org/history.shtml

[ron_1]

Lotusisrael wrote:
I have read somewhere that Pale Moon as of today descends from Firefox 38

Not right at all. The quote below, while referencing Pale Moon 25, is still applicable today (I'm sure I'll get corrected if this is wrong).

So, to be clear once again here: Pale Moon 25 is not based on Firefox 25. It's not based on any specific version of Firefox anymore, is an individually developed fork with a hybrid of code from many different versions of Firefox 24 and beyond as well as plenty of own code, and should be seen in its own right, with its own versions, based on its own release schedule and features.
https://forum.palemoon.org/viewtopic.php?f=24&t=6505

Or, to quote Tobin, Pale Moon is not Firefox and never will be again.

This link may also answer some of your questions. https://forum.palemoon.org/viewtopic.php?f=24&t=23577

[Moonchild]

Considering this wasn't a support question I've moved it to a better board.

[Lotusisrael]

One thing still remains un-clear. If Pale Moon diverged on version 24 from Firefox, how come Goanna diverged from Gecko at version 26? Up to 26, Pale Moon used standard Gecko, the same as in Firefox? I do not understand.

[New Tobin Paradigm]

You should read: https://www.palemoon.org/history.shtml

[Moonchild]

One thing still remains un-clear. If Pale Moon diverged on version 24 from Firefox, how come Goanna diverged from Gecko at version 26? Up to 26, Pale Moon used standard Gecko, the same as in Firefox? I do not understand.

We forked Gecko the moment we started to make edits to the layout&rendering engine, so it's not really been used as "standard Gecko" from the moment we forked off the browser. However, for a while we continued to carry the Gecko name for it, with relatively small changes, but eventually we had to choose a different name for it since it was no longer Gecko.
See also http://www.moonchildproductions.info/goanna.shtml

[Andrew Herbert]

What about SpiderMonkey (JavaScript engine)?

[New Tobin Paradigm]

That is part of the platform code.