Duplicate Tab

Rated 5 out of 5 stars

by Noffe on اوت 14, 2009 · permalink

I love this extension but I can't get it to work when I try to change so it works with FF 3.5.
I followed the guide at http://kb.mozillazine.org/Editing_an_add-on_to_change_its_compatibility.
But it say that Installation script is missing -204.

Can someone help or upload a working version please.