I have updated the Scuttle Firefox Extension to work with FF 3.0.1. I also changed the version of the extension to 0.4.1 to differentiate this update.
I have a personal copy of Scuttle on my web server and use the Scuttle Firefox add-on. Unfortunately, the author hasn’t made any effort to update the add-on to work with FF3. So I’ve changed the code to allow it to work correctly. I hope others find this useful.