Pale Moon is not free software because of unjust restrictions on its
redistribution in binary form: https://www.palemoon.org/redist.shtml
They violate this part of the free software definition:
The freedom to redistribute copies must include binary or executable forms of
the program, as well as source code, for both modified and unmodified
versions. (Distributing programs in runnable form is necessary for
conveniently installable free operating systems.)
https://www.gnu.org/philosophy/free-sw.html
