It has the same problem as Firefox, where freedom #2 (the ability to make
exact copies) has been limited to non-commercial purposes.
https://www.palemoon.org/redist.shtml
https://libreplanet.org/wiki/Libre_Browsers_Libre_Formats#Browsers_that_might_seem_free.2C_but_are_not
https://jxself.org/mozilla_trademark.shtml
Because that loophole is open, it allows room for a derivative to be free but
the original version itself would still only have 2 (or maybe 2.5) of those 4
freedoms, depending on how you count.
