If you want to have a backup of your FF settings-logins-favorites, just make a copy of the folder in C:\Users\Don\AppData\Roaming\Mozilla\Firefox\Profiles
If you loose it, have a crash or want it on another pc just copy the contents of the folder to the default folder removing the existing files first.

In Explorer go to Organize - Layout - Menu bar
Tools - Folder Options - View - Show hidden files, folders...