Bookmarks change mysteriously. The label is still the same. For example, it still says Toronto Public Library, but when clicked takes me to Backpage.com. It is usually some site I have recently visited and never even tried to bookmark. It seems to happen

The URL of the bookmark will have changed for no apparent reason, and it seems to be some random site that I have recently visited and never wanted bookmarked. I have only noticed this happening with bookmarks in the toolbar, and they are still labeled the same, but take me somewhere else when clicked on.