it to the right of the Stop button, as illustrated in Figure 18-4. Figure 18-3: By default, the Reload button is to the left of the Stop button Figure 18-4: but if you just drag the Reload button one position over, then As soon as you release the mouse button, the Reload button appears in its new location. Rather than leaving an empty space in the toolbar, Firefox automatically shifts the Stop button over to where the Reload button used to be, as shown in Figure 18-5. Figure 18-5: voila! The Stop and Reload buttons change places. Click Done to close the Customize Toolbar window. Removing toolbar items First, make sure you have the Customize Toolbar window open by choosing View Toolbars Customize. Then, to remove an item, drag the item you want to remove from the toolbar to the Customize Toolbar window. Surrounding toolbar items shift over automatically. Firefox tries to make efficient use of toolbar space wherever possible. For example, if you remove the Go button, Firefox automatically extends the Location Bar instead of leaving an empty space on the toolbar. Using special items: Spacing out Many people squish all their toolbar items into as little space as possible in order to increase the screen space for Web viewing. Some people, however, prefer having empty space on their toolbars, either to reduce clutter or to visually group related items together. Firefox offers several special items from the Customize Toolbar window for managing space: Separator: A Separator is a thin vertical line frequently used to divide toolbar items into related groups. Figure 18-6 illustrates using a Separator to distinguish a group of Cut, Copy, and Paste buttons from the standard navigational group. Figure 18-6: This Separator separates navigation and clipboard buttons. Space: A Space is - as the name suggests - a small bit of horizontal space you can use to separate two adjacent items. Some people like to use Spaces like Separators to delineate a group of related toolbar items; others just find aesthetic appeal in having more spacious and less cluttered toolbars. Figure 18-7 illustrates using a space rather than a separator to distinguish the group of Cut, Copy, and Paste buttons. Notice that the bottom part of Figure 18-7 shows how the space fades into the toolbar color when you close the Customize Toolbar window. Figure 18-7: Like Separators, Spaces help you divide up your toolbars logically. Flexible Spaces: A Flexible Space is very similar to a Space, except that instead of offering a fixed amount of space, a Flexible Space stretches to fill all the unused space in the toolbar to which you add it. The toolbar design in the Windows version of Firefox contains a Flexible Space by default. Look in the top-right corner of the Firefox window, and you see a small image called the Activity Indicator, which animates when a Web site is loading. This image is separated from the Firefox menus with a Flexible Space, which is revealed when you open the Customize Toolbar window, as shown in Figure 18-8. If you'd like, you can remove this Flexible Space by dragging it back into the Customize Toolbar window, just as you remove other toolbar items. Figure 18-8: Flexible Space items, normally invisible, are revealed when the Customize Toolbar window is open.   What's the best toolbar design?