If you have the del.icio.us addon, you probably hid your Bookmarks menu button. Go to the del.icio.us menu, and at the bottom you will see 'Show Bookmarks Menu'.
To put toolbar on Firefox go to View-> Toolbars and click on the desired toolbar.
Getting Rid of toolbars can be a pain, but there is a simple addon for modzilla firefox, which will help to remove and prevent future addons,
right click and the left click delete
Firefox toolbar can be found on the upper right side portion of the Mozilla browser. It can also be seen by hitting the Alt key.
To restore your toolbars in Windows 10, right-click on an empty space on the taskbar and select "Toolbars." From the list, you can check the toolbars you want to display, such as "Address" or "Links." If your toolbars are missing entirely, you can also reset the taskbar settings by right-clicking the taskbar, choosing "Taskbar settings," and checking your configuration. Restarting your computer can also help if the toolbars don’t reappear immediately.
Check your recycle bin on your desktop.
Try right-clicking on one of the existing toolbars, then select Stumbleupon Toolbar
you must restore your ipod by using firefox
To show or hide the "Navigation toolbar" or "Bookmarks Toolbar" included with Firefox (both are shown by default) or to show or hide other toolbars added to Firefox, go to the "View" menu, select "Toolbars" and click on a listed toolbar to select or deselect the toolbar. Toolbar add-ons from third-party software providers can be installed in Firefox by visiting a website and clicking an "Install' link. If you want to delete those toolbars just uninstall the add-on that installed it. To do so, go to Tools - Addons - find the add-on that installed the toolbar, and click Uninstall.
Under the "View" tab, select Zoom and click on "Restore" or shortcut: CTRL + 0
It's possible you removed it from your toolbar. Simply edit your toolbars and put it back.
Select View -> Toolbars -> Navigation toolbar