The Go, Stop and Refresh buttons were combined into one button at the right end of the URL/Address bar beginning in Firefox 4. You can have separate buttons if you drag the Stop and/or Refresh buttons to a different location on the Nav toolbar and/or reverse the order of the two when the Customize window is open or by dragging a space or separator between them from the Customize menu.

• https://support.mozilla.org/en-US/kb/common-questions-after-upgrading-firefox-36#w_what-happened-to-the-back-forward-refresh-and-home-buttons
• https://support.mozilla.org/en-US/kb/customize-firefox-controls-buttons-and-toolbars

THANX for your help "theoldfox". I now have a stop button between the refresh button & the search engine bar.

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