Harishankaran (sp2hari) has done a wonderful job, Firefox automation using LDTP as part of Google Summer of Code 2007 under Mozilla organization.
Few interesting blogs by the student
* Firefox 3.0 amazing experience
* Tinderbox integration (Credit goes to Emily Chen, Dave Lin - Sun China team)
* SOC status
* Screen cast of FF 3.0 automation
A big thanks to Emily Chen, Dave Lin, Michael Shang of Sun China team ! Without their support its going to be a miracle for the student to integrate Firefox automation in Solaris Tinderbox setup.
You can download the FF 3.0 automation scripts from here