Jim Fautand Rick Palkovic have been posting a nice series on how to troubleshootOpenSSOwith Firefox Add-Ons.They just pushed out two more entries in the series, which now includes:

•Part 1: Introduction
•Part 2: Single Sign-On and Policy Protection
•Part 3: Cross-Domain Single Sign-On
• Part 4: Service Provider Initiated Fedlet Single Sign-On
• Part 5: Identity Provider Initiated Fedlet SSO Fedlet deployment

These articles are worth a check even if you just want to learn about how OpenSSO works:just follow their diagrams to seethe exchange of information between the parties that enable these features.

And, on this topic, you may want to track the participation of the OpenSSO team at next week'sInternet Identity WorkShop;see Daniel's note.

And Happy Halloween!