Penpower Technology Ltd
Cannot recognize Chinese Writing

I up-dated Firefox Version 3.6, after that, my Penpower Technology Writing Pad would not work for Chinese Writing. Firefox would not recognize my Chinese writing. I have to back to Version 3.85 to write Chinese. Kindly help to solve the problem or let me know why?? Thank you for your help.

P.S. I have used Firefox as my default browser for years and year, it has been getting better and better until NOW.