What version of PaleMoon are you using? I browsed through the site quickly and looked at what appeared to be several PaleMoon browser downloads?
24.4.2
http://www.palemoon.org/download-ng.shtml
I got the 32 bit version, but I use a 64 bit OS (Windows 7).
I might go to the 64 bit on my next days off after I’ve had a few days to play with this.
24.4.2 x86