This issue is not a Tiki 14 issue yet a Mozilla Firefox setting issue.
And it is very elementary to say the least, the fix is simple. So embarrassingly simple I am embarrassed I did not figure it out earlier.
I thought my installations were faulty, so I installed 14 at least three different times, until I finally tried 14 out in Chrome, then in IE, both worked, the user menus popped and dropped. I finally realized this was a Firefox browser issue.
Then a light went on, and I realized the user menus are popups. This must be a setting in Firefox.
This is a simple fix, and I hope it helps some folks like me, who are a tad slow on the uptake when it comes to things like this!
At your Firefox browser menu bar, click on "Tools" then click on "Content" , uncheck "Block Pop-up windows". And you are fixed.
Clear your history cache in Firefox, and you will now have your user menus popping again.