Open up your HOSTS file and paste this into it.
0.0.0.0 twitter.com
0.0.0.0 www.twitter.com
:: twitter.com
:: www.twitter.com
Open up your HOSTS file and paste this into it.
0.0.0.0 twitter.com
0.0.0.0 www.twitter.com
:: twitter.com
:: www.twitter.com