(转)Debug Silverlight in FireFox
If you set Firefox as your default browser. You cannot debug a Silverlight application easily. There is a workaround for this problem.
- Type "about:config" into FireFox's address bar
- Accept the warning (if applicable)
- Search for the entry "dom.ipc.plugins.enabled.npctrl.dll"
- Change its value from "true" to "false" (double-click)