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.