An HTML backup should include all the bookmark folders created under the three main/root folders (Bookmarks Toolbar, Bookmarks Menu, Other Bookmarks). If that isn't the case then there might be a problem with the places.sqlite database.

This could be a problem with the places.sqlite and favicons.sqlite files in the Firefox profile folder.

• use the "Places Database" -> "Verify Integrity" button on the "Help -> More Troubleshooting Information" (about:support) page

If errors are reported with "Verify Integrity", close and restart Firefox or reboot and retry. See also:

• https://support.mozilla.org/en-US/kb/fix-bookmarks-and-history-will-not-be-functional
• https://support.mozilla.org/en-US/kb/cant-add-change-or-save-bookmarks

See also this extension:

• https://addons.mozilla.org/firefox/addon/bookmark-branch-porter/

The folder names should be in the page above the list of links for that folder, but the layout is inconvenient. If you want to try it a different way, I have a converter which starts from a backup file (the JSON one) and allows various formatting options to give you a more appealing HTML page. (Or tab-separated list, if you want to import into Excel or another spreadsheet.)

• Making a JSON backup: Restore bookmarks from backup or move them to another computer
• My converter tool: https://www.jeffersonscher.com/ffu/bookbackreader.html

This is an image of some bookmarks -> https://snipboard.io/flEh6j.jpg. This is part of the HTML image -> https://snipboard.io/DmJ659.jpg.

The HTML display, while it contains the sub-folders, it is different than I had expected. Perhaps the HTML, after imported, will end up the looking the same as the first image?

If you want to test the import, you can create an extra profile. Here's how:

New Profile Test

This takes about 3 minutes, plus the time to run the import.

Inside Firefox, type or paste about:profiles in the address bar and press Enter/Return to load it.

Take a quick glance at the page and make a mental note of which Profile has this notation: This is the profile in use and it cannot be deleted. That is your current default profile.

Click the "Create a New Profile" button, then click Next. Assign a name like Test2024, ignore the option to relocate the profile folder, and click the Finish button.

Firefox will switch your default profile to the new one, so click the Set as Default Profile button for your regular one to avoid an unwanted surprise at your next startup.

Scroll down to Test2024 and click its Launch profile in new browser button.

Firefox should open a new window that looks like a brand new, uncustomized installation. (Your existing Firefox window(s) should not be affected.) Please ignore any tabs enticing you to connect to a Sync account or to activate extensions found on your system keep it clean.

If you import your .html file, does it land where you expect?

Sometimes imports end up in an Imported Bookmarks folder at the bottom of the Bookmarks Menu or in Other Bookmarks. In that case, the structure should be preserved but you'll need to do some reorganizing.

When you are done with the experiment, you can close the extra window without affecting your regular Firefox profile. (Test2024 will remain available for future testing.)

The second screenshot is what you see if you open the HTML file in a Firefox tab, that is a page with clickable links. You can check the page source (Ctlt+U) to see what it looks like. The first screenshot shows what you see in the Bookmarks Manager (Library) after you import the HTML file.

jscher2000 and cor-el, These are exceptional response! Thanks!!!