In the past two days IDEA has begun opening two browser windows when deploying an exploded WAR for JBoss. IDEA opens the first browser window while JBoss is still starting up and the browser window displays a 404 error. This has not happened before. The second browser window opens up at the appropriate time and displays the welcome page for my web application. The other configuration I use, for normal WAR deployment, continues to work fine (doesn't open two browser windows). I looked in my JBoss server run/debug configurations and they look fine. How to fix this problem?