Refresh Firefox - reset add-ons and settings

Revision Information
  • Revision id: 53140
  • Created:
  • Creator: Michael Verdi
  • Comment: WIP - Don't approve, removed content for fx16 and lower, reworded "firefox services" to "social features", put steps above "what does the reset feature do" section
  • Reviewed: No
  • Ready for localization: No
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Revision Content

Over time Firefox can develop problems like slowness, crashing, unwanted toolbars and more. Troubleshooting and fixing these issues can be difficult and time consuming. The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.

How do I reset Firefox to its default state?

  1. Click the menu button Fx89menuButton, click Help, and select More Troubleshooting Information.
  2. Click Refresh Firefox… then Refresh Firefox in the confirmation window that opens. Firefox will close to refresh itself.
  3. When finished, a window will list your imported information. Click the Finish button. Firefox will open.
  4. Select whether you want Firefox to restore all or some windows and tabs, and click the Let's go! button.
Note: There's a Refresh Firefox button in the Firefox Troubleshoot Mode window, if you can't start Firefox normally. You can also do a manual refresh by creating a new profile and transferring your important data to the new profile.

What does the reset feature do?

All of your Firefox settings and personal information are stored in your profile folder. The reset feature works by creating a new profile folder for you while saving your most important data.

Firefox will keep the following data:

  • Bookmarks
  • Browsing history
  • Passwords
  • Cookies
  • Web form auto-fill information
  • Bookmarks
  • Browsing history
  • Passwords
  • Cookies
  • Web form auto-fill information
  • Personal dictionary
  • Bookmarks
  • Browsing history
  • Passwords
  • Open windows and tabs
  • Cookies
  • Web form auto-fill information
  • Personal dictionary

The following items and settings will be restored or removed:

Note: After the reset is finished, your old Firefox profile information will be placed on your desktop in a folder named "Old Firefox Data." If the reset didn't fix your problem you can restore some of the information not saved by copying files to the new profile that was created. See Copying files between profile folders for instructions. If you don't need this folder any longer, you should delete it as it contains sensitive information.