Mac OS X 10.5
- Open the Apple Menu
- Click System Preferences
- In the System Preferences window, click on Security

- Click on the Firewall tab. Click Set access for specific services and applications. Click the + (plus) sign.

- Navigate to the World of Warcraft folder and select the World of Warcraft application file. Click Add.

- Make sure World of Warcraft is set to Allow incoming connections.
Congratulations! Your firewall should now allow traffic for proper World of Warcraft and Blizzard Downloader operation.
Updated: Mar 22, 2012
Article ID: 300592