Greasy Fork

Nice script! And some Firefox issues.

In Firefox, you have to port the objects to unsafeWindow or it can't be used in console.

You can add something like

if (typeof unsafeWindow != "undefined") {
    unsafeWindow.HDOSettings = HDOSettings;
    unsafeWindow.SaveHDOSettings = SaveHDOSettings;
}

to the end of script.

OK, thanks! I was unaware GM had security like that. Updated :)