jfrankeny said

when I go to . . . . the bookmark filesi want are there but they do not show up in foxfire.

These are compressed backup files.

I do not know what the bookmark manager is or how to find it

To open the Bookmarks Manager; Press the Alt or F10 key to bring up the toolbar, and select Bookmarks. Hot key is <Control> (Mac=<Command>) <Shift> B.

and I do not know what the places.sqlite file is.

That is located in your user profile.

All I know to do is to copy the profile from external hdd and paste it under the code.default file. Just an amateur.

This depends on how the files were saved and what files you have.

Restore Bookmark Backups

Firefox automatically makes backups of the bookmarks. These are stored in the bookmarkbackups folder.

Open the Bookmarks Manager; Press the Alt or F10 key to bring up the toolbar, and select Bookmarks. Hot key is <Control> (Mac=<Command>) <Shift> B.

Once the window is open, at the top of the page, press the button labeled Import and Backup. Select Restore. From the list, pick the file you want and click it.

The backups are stored in a jsonlz4 file named something like this; bookmarks-2016-06-29_1424_enD1GTH ya0JmicnYWg4V4g==.jsonlz4

In this example; 2016-06-29 = date created, 1424 = number of entries.