There are some extensions for that, but it is not strictly needed:
https://forum.manjaro.org/t/howto-en...se-wheel/39954
The linked tutorial is intended for people who don't use terminals that much, and ironically I find somewhat confusing, not that I'm any sort of master of all terminals or anything. The summarized version is, in the browser directory ("~/.moonchild productions/pale moon" for palemoon), on whatever user profiles subdirectories...
