The problems occur on Firefox with the following tool bar buttons:

1) Functionality bug:  “Cut” toolbar button deletes the text I cut, and does not make a copy of cut contents in buffer.  (Neither CTRL-V or Paste button cause cut text to reappear.)

 

2) Cosmetic bug: “Paste” toolbar button provides list of options - first option is normal paste, followed by other options such as "Paste From Word."  Choosing the first option: “Paste,” shows “Paste From Word" in the popup title.