Changes

I tried for 10 Hrs. straight to learn Mozilla preference System. I had some issues that I couldn't solve. When I asked my issue to the channel, Sid0 came up with the solution. It was a wrong Chrome://URL. Everything else was done before. I just replace this code by database system code in 0.20 release and the code was ready to submit as 0.22 release. At last, I submitted the patch again on 15th Nov, 2008. I am going to make it more user friendly in the next patch.