Hello, my bookmarks disappeared out of sudden. All bookmarks in the toolbar and the sidebar vanished, completely. Nothing left in the sidebar except the search input field. Since I could not even import them from a backup I decided to reinstall firefox. Even after reinstall the problem persists. No bookmarks are shown and I can't add any bookmarks. When I right click for example on the bookmarks toolbar and select "New bookmark ..." a new window appears with only the two buttons "add" and "cancel". No input fields, nothing else. Very strange behavior. Any ideas? System: Firefox 45, Windows 7