Customizing the Xfce pop-up menu
I just installed Firefox, and I'd like to add it to my Xfce pop-up menu.
I've gone into the Xfce menu editor, and found that the bulk of the menu seems to be contained in the command "--- include --- system". So, I guess my question is, what is this "system" that the menu editor talks about, and how do I edit it?
Thanks for your help