FireFox add-on running on Linux (Ubuntu 11.04): Trouble shooting on existing add-on by fritserasmus

I have a FireFox add-on running on Linux (Ubuntu 11.04) to start a screensaver. The add-on has a bug which I cannot get rid of, I need a knowlegable firefox add-on person to either de-bug or re-write this for me… (Budget: £20-£250 GBP, Jobs: Firefox, Linux)