There may be other unforeseen breakage primarily in the handbook portion of the wiki.
The Table Of Contents section of each "PC-BSD® Users Handbook" page may be the best workaround.
(Sorry for the inconvenience)
The Mount Tray application is used to facilitate the mounting and unmounting of USB storage devices. It is included in Control Panel, meaning that in can be used within any window manager, even those that do not provide a USB mounting utility.