Wasn't aware of Waterfox and I mistakenly thought Pale Moon was just a de-branding. Looking at Pale Moon's site, it's clear that it's a whole other branch now (like Blink/WebKit/kHTML).

I'm happy with Firefox (and Mozilla) personally but I'll be sure to recommend these if/when I hear people asking for an alternative to Google and Mozilla in the future.

Thanks for sharing.