Hi Terry,
I'm not sure whether you've updated your DEMO page with the latest fixes, but if you have done so, I thought I should tell you that I'm still seeing strange problems with cut and paste operations, e.g. using control character sequences, under the latest vesion of Firefox.
When I copy text such as "text text " into my paste buffer and then paste using Cntrl-V, I actually see two copies of the pasted text for each Cntrl-V that I press. If I paste by holding down the paste key, I also get additional stray characters like I did beflore. See video.
Or maybe the version on the DEMO page is still V6.4?
Regards,
Bill