Greetings All,
I've recently noticed the "Missing Plug-in" phenomenon too in Apple Mail (Version 3.6 (936)). I've tried resetting Java preferences by clicking the "Restore Defaults" button, but there's no change. Since I'm running Leopard 10.5.8 I didn't download the Java for Mac OS X 10.6 Update 2 at
http://support.apple.com/downloads/. Is it okay to load this update if I'm running OS X 10.5.8? If so, I'll give it a try, but I don't want to attempt a fix if it's going to cause more problems.
I also went into Safari (Version 5.0.4 (5533.20.27)), into Preferences/Advanced and checked the Show Develop Menu in Menu Bar. I then went into Develop but found no Enable Extensions option. So that was a dead end.
I've checked my system for updates and everything seems to be up to date. However, I suspect that this just may be part of the problem. Sometimes things get fluky when updates occur. Strange how that is.
Any suggestions will be appreciated.
Thanks!