Isn't that a bookmark on the Bookmarks Toolbar?

You can remove this smart bookmark via the right-click context menu or in the Bookmarks Manager (Library).

• https://support.mozilla.org/en-US/kb/how-do-i-delete-bookmark

firefoxylady said

how to remove this new 'most visited' part of the info bar

Hello firefoxlady,

Very simple :

Click on the 'star on tray' button (right side of the toolbar), then click on 'Bookmarks Toolbar' and to the right you'll see "Hide Bookmarks Toolbar' - click on that and you'll see it disappear .....

Hi McCoy& thanks to you & cor-el for taking the time & effort to respond! I didn’t realize that I had the bookmarks toolbar selected …so by un-clicking it, it closed the bookmarks toolbar! Thanks for your help!