ALL Of my Friefox bookmarks are gone after an update [View all]

How do I recover them? online instructions are of no help because it is telling me to click on something 'at the top of the library window" that just isn't there. Here is what I got:


To recover them, follow the instructions below.

Click the Bookmarks button. ...
At the top of the Library window, click on Import and Backup and select Restore.
Click the date of the bookmark backup you want to recover.
In the new window that appears, click OK.
Your bookmarks from the selected date should now be restored.


ANY help would be greatly appreciated.