We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

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.

  • 2 replies
  • 3 have this problem
  • 39 views
  • Last reply by ideato

more options

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.

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.

All Replies (2)

more options

Hi,

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!

more options

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


thank you