I had this thing go through my bookmarks. It scanned 1225 bookmarks and 90 had errors and 600 warnings. I was going to delete the errors, but I thought I would check first. The first 10 bookmarks with errors that I checked went right to the web page it was bookmarked for. Nothing wrong with the bookmarks that were marked for error. This thing is worthless and has people deleting perfectly good bookmarks. Uninstalling!