Got them, thanks very much!
For future reference to others with this issue – “Reset Firefox”(/PaleMoon) will lose your saves, but they can be restored by copying:
places.sqlite and webappsstore.sqlite (not sure if both are required) from the desktop\Old Firefox Data\<profile name> dir to c:\users\<username>\AppData\Roaming\Mozilla\Firefox\Profiles\<new profile name>.
That folder structure assumes Win7/8/Vista, it would be documents and settings on XP. On PaleMoon, it’s:
desktop\Old Pale Moon Data\<profile name> -> c:\users\<username>\AppData\Roaming\Moonchild Productions\Pale Moon\Profiles\<new profile name>.