Hello,

Exactly what kind of have you lost, in case of bookmarks,,,then you can recover your Bookmarks.

Firefox automatically creates backups of your bookmarks, which can be helpful if your bookmarks are lost or missing. To recover them, follow the instructions below.

1. Use one of these methods to open the Bookmarks Library window:
   • Click the Firefox button to open the menu and click on Bookmarks.
   • Click the Bookmarks menu and click on Show All Bookmarks.
2. At the top of the Library window, click the "Import and Backup" menu and select Restore.
3. Click the date of the bookmark backup you want to recover.
4. In the new window that appears, click OK.
5. Your bookmarks from the selected date should now be restored.

For more information, see the Restore bookmarks from backup or move them to another computer article. For other solutions, see the Recover lost or missing Bookmarks article.

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Thank you.

Your System Details List shows that you have set the browser.privatebrowsing.dont_prompt_on_enter pref to True. The Firefox 16 version that you use still supports this pref, so you won't see a prompt to enter Private Browsing mode.

You can reset this pref on the about:config page via the right-click context menu to restore the default behavior.

• http://kb.mozillazine.org/about:config