How did you back them up?

See -> https://support.mozilla.com/en-US/kb/Backing%20up%20your%20information#os=win&browser=fx7 and https://support.mozilla.com/en-US/kb/Recovering%20important%20data%20from%20an%20old%20profile#os=win&browser=fx7

using the show all bookmarks window tool bar import and backup

So you did a backup and saved a JSON file? What happens when you try and import? Any error message?

Make sure that the backup file with the bookmarks has the correct file extension: .html for a HTML backup and .json for a JSON backup.
You can check that via the right-click context menu of that file and open the Properties.
If you are not sure about the file type then you can open the file in Firefox via "File > Open File"
A JSON backup will show as one long text line without line breaks and a HTML backup as a web page with clickable links.

A JSON backup starts with: {"title":"","id":1,"dateAdded":
An HTML backup starts with: <!DOCTYPE NETSCAPE-Bookmark-file-1>

Add quotes ("") around the name to rename the file to the correct file extension if the current file extension is hidden or if it is otherwise not working.

it's jason

Did you check the file type via the right-click context menu > Properties to make sure that the file type is JSON?

What happens if you try to restore the JSON backup?

hum it loads default settings on toolbar and stuff

Quote: hum it loads default settings on toolbar and stuff

Does that mean that at least some bookmarks get restored?