> Well, that is no way to make sure, now, is it? What's the license is the > question you should be asking. > > https://www.palemoon.org/redist.shtml > > That to me does not seem to be free software. Am I missing something?
This site isn't accessible over Tor without completing one of those demeaning "Click on every picture containing a bus. Oops one of those was a car. Now try clicking on every picture containing a sign. Good boy!" security checks, so I'll take your word for it. According to Wikipedia, the source code is MPL2, which is a libre license, but Pale Moon-branded binaries are proprietary. It's unclear whether it's the same deal as Firefox where if you modify the software you can no longer call it Firefox, or a more restrictive case where you can't even compile it yourself and redistribute it as Pale Moon. Apparently it's a Firefox fork. I'd be interested to see what its default about:config looks like.
