Rated 5 out of 5 stars

but...
please, correct Autocomplete listbox (FF50)

Not seeing any issues with the autocomplete listbox in the Add-ons Manager. If you contact me with further details, I'd be glad to try to help. Preferably use the listed support forum or my contact form at http://www.shadetreeapiary.com/extension/Forms/aomhilite_contactform.htm