the right-clicks pet was put together specifically for lxpup and pcmanfm
That's great news. don570's right-click is very useful to me--adds considerably to usability. Glad LxPup has one too. Uh, I haven't been able to find it--ok, I'm lazy.
About Inscapelite,. Do you mean the About under Help? It works for me, but I am using the Firefox 28 pet that I posted. I didn't get that error message. Here's my mimeapps.list. I am using 14.03 (slacko-based) which may matter, who knows.
[Added Associations]
x-scheme-handler/http=lxpuphelp.desktop;userapp-Firefox-0JOZCX.desktop;
x-scheme-handler/https=lxpuphelp.desktop;userapp-Firefox-0JOZCX.desktop;
x-scheme-handler/magnet=userapp-transmission-gtk-JMO0CX.desktop;
x-scheme-handler/ftp=userapp-Firefox-0JOZCX.desktop;
x-scheme-handler/chrome=userapp-Firefox-0JOZCX.desktop;
text/html=userapp-Firefox-0JOZCX.desktop;
application/x-extension-htm=userapp-Firefox-0JOZCX.desktop;
application/x-extension-html=userapp-Firefox-0JOZCX.desktop;
application/x-extension-shtml=userapp-Firefox-0JOZCX.desktop;
application/xhtml+xml=userapp-Firefox-0JOZCX.desktop;
application/x-extension-xhtml=userapp-Firefox-0JOZCX.desktop;
application/x-extension-xht=userapp-Firefox-0JOZCX.desktop;
[Default Applications]
x-scheme-handler/magnet=userapp-transmission-gtk-JMO0CX.desktop
x-scheme-handler/http=userapp-Firefox-0JOZCX.desktop
x-scheme-handler/https=userapp-Firefox-0JOZCX.desktop
x-scheme-handler/ftp=userapp-Firefox-0JOZCX.desktop
x-scheme-handler/chrome=userapp-Firefox-0JOZCX.desktop
text/html=userapp-Firefox-0JOZCX.desktop
application/x-extension-htm=userapp-Firefox-0JOZCX.desktop
application/x-extension-html=userapp-Firefox-0JOZCX.desktop
application/x-extension-shtml=userapp-Firefox-0JOZCX.desktop
application/xhtml+xml=userapp-Firefox-0JOZCX.desktop
application/x-extension-xhtml=userapp-Firefox-0JOZCX.desktop
application/x-extension-xht=userapp-Firefox-0JOZCX.desktop