Pfsense squid proxy error

[medhatmamdouh]

hi,
i'm new to pfsense and still guessing my stpes and learning, i used to manage TMG ,
i successfully installed and configured pfsense and i have some questions and some errors,
  1. i enabled squidgaurding and when i try to open www.google.com i see this error but when i use the search area at firefox or chrome it open google normally
–--------------------------------------------------------------------
Request denied by pfSense proxy: 403 Forbidden

Reason:
Client address: 192.168.1.82
Client group: default
Target group: none
URL: http://www.google.com/192.168.1.82/--GET

2. i need to know how many request is blocked and what is the most visited web categories and also most hit categories , i tried squid light but i didn't find those report, if those report exist, kindly point me to the current direction to read about it.

3. squid traffic management, is there is any way i could force it based on source ip.