The CF No Debug Firefox extension has been updated to work with Firefox 3.6. You can get the latest from RIAForge.
This evening I released AMF Explorer 0.6. This version adds a custom binary cache that should fix issues some users were seeing with AMF response deserialization. I'm still waiting for AMO public approval, so if you are using AMF Explorer you will need to manually update the add-on from the AMO site. Please be sure to report any issues to the AMF Explorer bug tracker at RIAForge. Thanks.