hello, please try to follow the instructions provided at the downloadhelper homepage or in case you can't work it out that way, please contact the developers of the extension directly, since they can likely give you far more detailed guidance on the issue: www.downloadhelper.net/conversion-manual.php?lang=en#install-windows

The Reset feature creates a folder on your desktop named Old Firefox Data. If you need to find the files or data for an extension you had installed before your Reset, they may be in there. Don't delete this folder until you've worked through all "missing stuff" issues.

Thanks for the help everyone