You can find the toolbar Home button at the far right end of the Navigation Toolbar.
If you do not see that button then click the "Restore Default Set" button in the Customize window.
Open the Customize window via "View > Toolbars > Customize" or via "Firefox > Options > Toolbar Layout"

You can drag the Home button from its current position at the right to the position at the left of the location bar if you want that button in its old position.

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

Hi Cor-el - thanks for your reply. I tried what you suggested, without success; but what did work was in the customize window, I clicked on 'show icons and text' and then I could see 'Home'. Otherwise, I couldn't find the icon alone.

So thanks for your help, by directing me to the customize window. :)

Actually, now that I see the icon with the text, I do see that the icon was there before and didn't know what it was - it's different than the icon showing on your posting. Cheers.

You're welcome