Thank you "anonymous"
.............................
And:
This is the location in windows 7 but it is hidden and it should be change in view setting beforehand.
C:\Users\1\AppData\Local\Web Freer\User Data
in "Local State" file can be either "chative.com" or "funvideo.ca"
This will change Homepage but unfortunately cannot change new tab "chative.com" or "funvideo.ca" which is so annoying.