The instructions I found talk about Windows XP and selecting a history tab and then selecting export. Can't find this on my browser.
You can copy/overwrite places.sqlite in the Windows 2000 Firefox profile folder into the Windows 8 Firefox profile folder. This would bring in both the bookmarks and history.
Firefox Profile Folder
To open the profile folder via Firefox: Help (Alt + H) > Troubleshooting Information > Show Folder.
Firefox Profile Folder & Files