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Firefox 16.02 has a stored history from 1 month ago. After a crash, Firefoxit reloads this old history, not my recent history. Why? Using WinXP SP3.

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Recent history is stored correctly. Yet, when I open Firefox after a crash, recent tabs are not shown, just the tab configuration I had open about one month ago. How do I reset this so Firefox knows my recent tabs?

Previously I used History/Restore Previous session. Now I just changed Firefox to show, my windows and tabs from last time when starting. I then killed my Firefox session and restarted - I still get the tabs from 1 month ago.

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The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.

Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

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Hello alukoff, rename prefs.js to prefs.jsOLD in your profile folder, see for more information: Corrupt or damaged prefs.js file

thank you