To label a message in Mozilla Thunderbird, Netscape or Mozilla:
- Highlight the message in the mailbox summary.
- Select Message | Tags | <desired label> (or, depending on your version of Mozilla Thunderbird, SeaMonkey or Netscape, Message | Label | <desired label>) from the menu.
Alternatively, you can also right-click on the message and select Tag | <desired label> (or Label | <desired label>) from the context menu. Or, best of all, use keyboard shortcuts:
- Press 1 to set a message's label to the first label or (in Mozilla Thunderbird 9 and later) remove it if set.
- Use 2 to 5 for the other labels, and
- 0 to remove all labels.
(Updated February 2012)

