After slowly accumulating evidence that Pale Moon doesn't quite perform certain subtle things, right now for me mainline Firefox is clearly the better of the two for me.
So taking advantage of both the color coding of the icons and that they can each have a different home page, today I separated my favorite links into two categories - Serious and Fun. Traditionally all my life I get distracted by fun things, and it's finally starting to catch up to me in a bad way. So using a couple of cute little bits of psychology (and an hour cleaning up my comp desktop and home workstation!) I now have to make an actual decision to click the "Fun side" (Palemoon, Blue-ish), as a conscious choice when I have Serious things (Firefox, Reddish-Orangey) to be doing.
Just one more little tidbit in how to maximize the tools at hand!
Maybe this will help someone else. : )