2014-04-13 20:59:08 - ExtensionManager:_finishOperations - failure, catching exception - lineno: 7307 - file: undefined - [Exception... "Component returned failure code: 0x80004003 (NS_ERROR_INVALID_POINTER) [nsIRDFDataSource.Assert]"  nsresult: "0x80004003 (NS_ERROR_INVALID_POINTER)"  location: "JS frame :: file:///G:/Framakey/Apps/PortableFirefox/firefox/components/nsExtensionManager.js :: EMDS_addItemMetadata :: line 7307"  data: no]
2014-04-13 20:59:13 - ExtensionManager:_finishOperations - failure, catching exception - lineno: 7307 - file: undefined - [Exception... "Component returned failure code: 0x80004003 (NS_ERROR_INVALID_POINTER) [nsIRDFDataSource.Assert]"  nsresult: "0x80004003 (NS_ERROR_INVALID_POINTER)"  location: "JS frame :: file:///G:/Framakey/Apps/PortableFirefox/firefox/components/nsExtensionManager.js :: EMDS_addItemMetadata :: line 7307"  data: no]