In the latest release of Firefox 3.6 they introduced this much anticipated feature of the seperate thread that holds plugins in order to close up with Chrome/Safari. Unfortunatly for the developers that use Flash Builder, FDT oder oder debuggers this feature is fatal. In short: Firefox will kill your debugging because it thinks your flash broke.
There is an easy fix for this problem:
- Go to about:config:

- Search for “ipc”. This will list the new plugin configuration entries.

- Change the value of “dom.ipc.plugins.timeoutSecs” to -1 (will run forever)

Of course this way its you won’t be able to get in the advantage of this particular feature of firefox.
I just added a feature request to the FDT bug base that specify a cool feature to deal with this problem: http://bugs.powerflasher.com/jira/browse/FDT-1002. Vote for it!
yours
Martin.
Tags: Debugging, FDT, Firefox 3.6, Flash, Flash Builder, Quick Hint