403 Forbidden error when accessing localhost on Mac OS X10.8
To fix that issue check this link http://www.coolestguidesontheplanet.com/downtown/how-set-virtual-hosts-apache-mac-osx-109-mavericks-and-osx-108-mountain-lion read the "Losing Localhost" part.
The error occurs just after you enable vhosts in the httpd.conf file. By uncommenting this line:
Include /private/etc/apache2/extra/httpd-vhosts.confAdding this in the httpd-vhosts.conf will fix your issue. Just remember to add new vhosts before this one :D
<VirtualHost *:80> ServerName localhost DocumentRoot /Library/WebServer/Documents/</VirtualHost>I hope this solves your problem!