While performing the backup, please uncheck Cache and Downloaded File lists. Also, please click on Unknown and deselect everything you don't need. Usually the database contains files that occupy much space on the drive.
It's not a must to have this software installed but it may backup and restore your Firefox content very easy. However, you can uninstall or delete it manually if you want. It does not have any effect on system's functionality. MozBackup will allow you to create backups of your Firefox profile (passwords, bookmarks, add-ons, history, cache, etc).
While performing the backup, please uncheck Cache and Downloaded File lists. Also, please click on Unknown and deselect everything you don't need. Usually the database contains files that occupy much space on the drive.
Is this software a must? What is it used for?
It's not a must to have this software installed but it may backup and restore your Firefox content very easy. However, you can uninstall or delete it manually if you want. It does not have any effect on system's functionality. MozBackup will allow you to create backups of your Firefox profile (passwords, bookmarks, add-ons, history, cache, etc).