John has posted about his Firefox presentation over on his blog at lemasney.com -- he even provides the link to the complete presentation as well as the information on how to access the list of extensions and plug-ins he demonstrated:
Anyone who wishes to see the presentation [which I wasn’t actually able to give, but it all worked out] can go to http://ghost.rider.edu/openlearning and log in as a guest, then visit the Top25 Firefox Extensions course in the course list. There are lots of other resources there you can peruse if you like, too.
We did have a technical glitch which prevented John from accessing his server, but he carried on liek a pro and did the full presentation without his list of links. Thanks John for all your hard work -- and we look forward to having you back again sometime soon!