ACl setting

[Networksolution]

Hi
  I m using pf sence 2.2 version. i want to block https://gmail.com and orkut by timely Ex: 9:30AM to 5:30PM.
To do this i am using Proxy content filter. But i missing some thing when i start this nobody is able to access the internet.
I have also opened 443 port on firewall. Please let me know how i can block this?

Thanks