You are missing the point of the question. Forget about Palemoon, FSF or laws
for the moment and let's look at this:
If one has no security, one cannot function sanely (one becomes neurotic
etc). So we as living entities need security at all levels.
Suppose there is a system (program/device) which has the following qualities:
1. It does exactly what you want
2. It doesn't hide anything from you (it is open) so anyone can verify that
it has no harmful effects whatsoever
3. The experts who work on the program accept bug reports and feature
requests seriously
4. You have the possibility to learn and join the experts (if you want)
What else do you really need?