1. Right-click on a toolbar and choose Customize to open the customize toolbar dialog
2. With the customize toolbar dialog on display you can drag and drop the icons, placing them where you want

View > Toolbars > Customize

Drag those icons into the window first, then drag them back out to wherever you prefer.

Thank guys. That was easy! Everything I had read before had said to just drag them, nothing about putting them back in the customize window first.

You do not need to drag the buttons back in the toolbar palette. All you need to do is drag them to the left to their original positions on the Navigation Toolbar.

I tried to do that w/ my "bookmarks" icon. When I hit "done" on the customize toolbar box it disappears. When I go back into the box it shows up while the box is open. Then gone again when I close.

You only see the Bookmarks menu button if the menu bar is hidden.
If the bookmarks toolbar is visible then the default bookmarks menu button will appear on the right hand side of the Bookmarks Toolbar as part of the Bookmarks Toolbar Items.

@silkphoenix How did you get your kitty picture so clear?

That won't work. I need my menu bar. But I wanted the "bookmarks" icon on the far left side, too. Darn

That doesn't work for the Navigation toolbar - this was the original point.