So a library of mine whose sync arrow has been spinning for weeks has not yet synced to the online server, and when I try to export it, it gives me an error with this ID: 311742865.
Firefox preferences -> Privacy -> Remember history -> "clear your recent history" -> select Cache. The time period you clear will depend on when you first tried to download 2.0.8.
Firefox could not install the file at
http://www.zotero.org/download/zotero-2.0.8.xpi
because: Not a valid install package
-207
I am not sure how to interpret or respond to this error
Firefox could not install the file at
http://www.zotero.org/download/zotero-2.0.8.xpi
because: Not a valid install package
-207