The word action on the right side of the ;page after opening email disappeared. Clicking on it allows message to be ;printed. How do I restore this?

When opening an email and wanting to print it out, there was the word action on the right above the email along with other commands you could click on.  It was there one day, gone the next.  I can still click on the three dots, but using the action command with the drop down menu provided a better print.  How can this be restored?