About: http://webisa.webdatacommons.org/357748921

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	9/7/11 12:22 PM Some add-ons can produce this error if there is a problem with the calculated hash in the Add-ons site.
http://www.w3.org/ns/prov#wasQuotedFrom	mozilla.org