Comment 1 for bug 841367

IIRC I had similar problem that I could resolve by

- shutting down firefox
- removing xul-ext-bindwood
- [ maybe I even deleted the extension subdirectory in ~/.mozilla/extensions ]
- starting and closing of firefox
- reinstalling xul-ext-bindwood
- restarting firefox

It looked to me that the extension that was distributed and updated systemwide was not being updated in the user's configuration folder.

Disclaimer: This is written from memory only