All was going well with Firefox 11 this morning until it installed an automatic upgrade. Now all bookmarks have been lost. I tried restoring from a previous date. Nada! History is lost as well. I uninstalled and reinstalled Firefox. This did nothing. My addons are still operating. As an experiment I tried to import my Firefox bookmarks into Chrome. Chrome found them and imported them. I then tried to import these bookmarks into Firefox. It would not work. All of this happened during the latest upgrade. I tried running is safe mode - no bookmarks and no ability to restore them. Firefox is also sluggish. Not so with IE.