Add-ons • Re: Greasemonkey does not work any more

Since no one made a report of this issue and I don't have the exact issue that you are talking about, that means there's definitely something about your browser (My extension is showing in the menu bar, in the extension toolbar, and I'm able to add scripts manually, which is something I was making use of, when I was adding new features into the extension).

Are you able to make a new pale moon profile and then install the extension to see how it behaves?

If you're satisfied with Guerilla Scripting then, by all means you go ahead in using it.