Thank you for staying with the thread all the way to the end.
Your efforts were not in vain, and I've seen your bugzilla referenced in many other websites.
I have been watching from the sidelines, and indeed the FireFox issue was the same for my x64 laptop.
I'm still using Chrome until this is totally resolved.
You may be correct about the clipboard issue applying to applications besides Firefox in the future.
Let's hope to see Microsoft's update soon.
Many thanks again to all SevenForums members involved for your vigilance.
I truly appreciate it and the relief it has given me.