Hi

This support article should help:

https://support.mozilla.org/en-US/kb/customize-items-on-firefox-new-tab-page

Linked article does not help.

Add a shortcut

 If you have an empty tile:
       > I do not have an empty tile
 If you don't have an empty tile:
   You can edit an existing Shortcut to show a new title and URL.
   Hover the mouse pointer over an existing Shortcut that you no longer need.
       > I do not have an existing shortcut

. I do not have any tiles on the homepage. Please see the included screenshot of original post.

Can you try going to settings -> Home -> Check Sponsored Shortcuts. This should give you an empty tile. Add a shortcut to that empty tile, then uncheck Sponsored Shortcuts. You should see the Add Shortcut button with the plus now.

This is a current workaround, the relevant bug report for this issue is https://bugzilla.mozilla.org/show_bug.cgi?id=1940558.

Unfortunately, this did not fix the issue. I checked the "Sponsored Shortcuts" option, but the home page remained unchanged. No empty tiles or any tiles at all. I tried turning on and off the various options, but nothing was able to make the tiles appear.

Same here. I was having trouble with the cursor freezing intermittently. Later that day, bookmarks, extensions and homepage shortcuts were missing. So I'm trying to address one problem at a time. I tried the suggestions above and like rosgaajania, I couldn't get them to do anything at all. Would Mozilla folks please look into this problem and come up with a fix? Apparently, this is a new problem, with which our community members can't help. BTW, to emphasize, I did not erase the tiles. They just vanished along with other browser features.