Does not work! Rated 1 out of 5 stars

I get the following message in Firefox 4.0b11:
[Exception... "Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFileInputStream.init]" nsresult: "0x80520012 (NS_ERROR_FILE_NOT_FOUND)" location: "JS frame :: chrome://1clickweather/content/js/utils/filemanager.js :: <TOP_LEVEL> :: line 233" data: no]

I did as Revelation suggests but the 1 click weather there is the same as this one and it doesn't work!