• If, on Windows, in Firefox 3.6 the menu bar is hidden then press and hold the Alt key down or press F10, that should make the "Menu Bar" appear
• Go to "View > Toolbars" and check-mark "Menu Bar" with a click on it to make that permanent. See Restore the Menu bar in Firefox).
• Make sure that you have the "Navigation Toolbar" and the "Bookmarks Toolbar" visible: "View > Toolbars"
• If items are missing then see if you can find them in the "View > Toolbars > Customize" window
• If you see the missing item in the Customize window then drag it back from the Customize window onto one of the toolbars.
• If, in "View > Toolbars > Customize", you do not see that item then click the "Restore Default Set" button

See also Back and forward or other toolbar buttons are missing and Customize Firefox controls, buttons and toolbars

See http://kb.mozillazine.org/Toolbar_customization

Thank you for the suggestions.

I posted a reply earlier today saying that the setting under View, Naviagation Toolbar was NOT checked, so I checked it and all is well with the arrows for back and forward and the field for URL's is now visible.

I found a Knowledgebase document that suggested the above and then posted two replies to my questions the resolve them.

Best Regards,

Aaron