I use to have the bookmarks show up on the left side of the screen at all times when I opened Firefox. Now, for some reason, I have to go to the bookmarks in the help area to find what I am looking for. How do I have the sorted bookmarks show up on the left again?
The keyboard shortcut ctl+b opens and closes the sidebar. Otherwise, use the menu bar menu View > Sidebar >>. If you don't have the menu bar show, use alt+v to get View.