I'm using a Macbook Pro as a productivity/work machine and have Facebook and reddit blocked with
## # Host Database # # localhost is used to configure the loopback interface # when the system is booting. Do not change this entry. ## 127.0.0.1 localhost 255.255.255.255 broadcasthost ::1 localhost fe80::1%lo0 localhost 0.0.0.0 facebook.com ::0 facebook.com 0.0.0.0 reddit.com ::0 reddit.com
This has worked for a while in all browsers, but recently stopped working in Firefox and Safari, and I can't figure out why. I was previously using 127.0.0.1, but when that stopped working I tried 0.0.0.0 instead, no dice.
I did install Avast just recently so I thought that could have been the problem, what with its web security features, but I uninstalled the browser add-on in Safari and Firefox and I was still able to access Facebook and reddit just fine.
And I just tried uninstalling the add-ons again, and restarted the computer. Now, Google Chrome can access Facebook, but not reddit. Firefox can't access either, and Safari can access both...
I'm using OS X 10.7.5.