[Greasemonkey] Error installing user scripts

[Samuel Kordik]

I am unable to install user scripts. Whenever I go to a gm js script, and
choose "Tools" -> "Install This User Script...", I get the following error
message:
Error installing user script:

[Exception..."Component returned failure code: 0x80520012
(NS_ERROR_FILE_NOT_FOUND)
[nsIChannel.open]" nsresult: "0x80520012 (NS_ERROR_FILE_NOT_FOUND)"
location: "JS frame ::
chrome://greasemonkey/content/utils.js :: getContents :: line 167" data: no]

Any in help in resolving this would be greatly appreciated! I'd love to
grease my pages!
Thanks,
Samuel