File palemoon-profile.patch of Package palemoon
diff -ruN application/palemoon/app/profile/palemoon.js application/palemoon/app/profile/palemoon.js
--- application/palemoon/app/profile/palemoon.js 2018-12-04 22:09:52.000000000 +0300
+++ application/palemoon/app/profile/palemoon.js 2018-12-09 16:47:09.348832688 +0300
@@ -225,7 +225,6 @@
pref("keyword.enabled", true);
-pref("general.useragent.locale", "@AB_CD@");
pref("general.skins.selectedSkin", "classic/1.0");
// Native UA mode by default for unbranded