This version of Palemoon64 was specifically built (mostly by flinching MikeWalsh's portable) as an ORDINARY SFS to be included within an ISO. It can be obtained from the link here, https://www.forum.puppylinux.com/viewto ... 661#p76661 which also explains its advantages if so employed and how to take advantage of them.
Of course, it can be used as-is. However, once you already have any web-browser there's no reason not to just obtain MikeWalsh's portable, https://www.forum.puppylinux.com/viewto ... 4251#p4251 if you want Palemoon.
Edit: After thinking about it some more, I posted the follow:
" Actually, now that I've thought more about it, perhaps an even better method would just to include the palemoon folder [extracted from the downloaded tar.gz] in the ISO. No mess, no bother: just file-browse into it to start it via the LAUNCH script; perhaps later move it to a more suitable location. I must be slowing down. Should have thought of that before.
I'll leave the SFS on mediafire for about a month should anyone want it or disagree with the evaluation in the edit.