Multi-Account Containers - Missing an elements in the context menu of a link?

I have installed the Multi-Account Containers add-on. When I right-click on a link on a page, I am missing the '''Firefox Multi-Account Containers''' element shown in the [[Multi-Account Containers#_access-more-from-the-right-click-menu|Multi-Account Containers]] KB article (see attached screenshot KBContextMenu.png). My context menu looks like the attached screenshot MyContextMenu.png. # Has the Multi-Account Containers add-on been updated, and the KB article needs to be revised? # Is there a setting that I need to do to show this context meny element?