Step 1

Click the Firefox button at the top-left of the browser.  From the menu Select Options > Toolbar Layout…

Step 2

From the Toolbar and the Customize Toolbar window, you can add items to the toolbar by dragging them straight to it.  For example, since the regular address bar works as a search-box, why not just remove the separate dedicated search box?

More importantly, you can drag items around and remove them or put them on a new section of the toolbar.  To move the Tabs below the toolbar and address bar, Right-Click the tab bar and then Uncheck Tabs on Top.  You can also adjust the toolbars and even add the old legacy-style buttons back if you enable the Menu Bar.* *You can also just Press the Alt key to toggle the menu bar.

The Final Product

After a few minutes of customizing you can have a completely different toolbar at the top of your browser.  As shown below, I’ve removed the items I don’t use, and moved around the tabs.  If things get tricky, feel free to ask any questions you have in the comments section below!  Have a groovy time personalizing the Firefox 4 toolbar.

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