Ever since Firefox 4.0 by default the Reload and Stop is a combined button located on the far right of the Location (address) bar. With the Customize window open you can drag them to another place on a toolbar. To keep them separate either place them as Stop the Reload or if you want it as Reload then Stop then place a Space or Separator in between to keep them from merging.

Some entries in the View and History menu have been removed to clean up the user interface because studies showed that these were low usage items.
On Windows and Linux these were already hidden when you used to mouse to access the menu bar and only appeared when you used the keyboard.
You can click the toolbar Home button (far right on Navigation Toolbar) or use the keyboard (Alt/Option + Home).
You can find Back, Forward, and Reload in the right-click context menu in the browsing area or use the buttons on the Navigation Toolbar.

See also Help > Keyboard Shortcuts

• https://support.mozilla.org/kb/Keyboard+shortcuts

• Comeback View Menuitems: https://addons.mozilla.org/firefox/addon/comeback-view-menuitems/

Thanks, James. I found the reload icon where you said it would be. I didn't expect to find it there, so I didn't look carefully. Thanks for the attention, Mark