How to speed up your Mozilla Firefox

Refresh Firefox - reset add-ons and settings

If you're having problems with Firefox, resetting it can help. The reset feature fixes many issues by restoring Firefox to its default state while saving your essential information like bookmarks, passwords, and open tabs.

Reset Firefox to its default state

  1. At the top of the Firefox window, click the Help menu and select Troubleshooting Information.
    Troubleshooting info - lin
    If you're unable to access the Help menu, type about:support in your address bar to bring up the Troubleshooting Information page.
  2. Click the Reset Firefox button in the upper-right corner of the Troubleshooting Information page.
    Reset Firefox - Lin - 1
  3. To continue, click Reset Firefox in the confirmation window that opens.
  4. Firefox will close and be reset. When it's done, a window will list the information that was imported. Click Finish and Firefox will open.
Note: There's also a Reset Firefox button in the Firefox Safe Mode window, if you can't start Firefox normally.

What does the reset feature do?

All of your Firefox settings and personal information are stored in a profile folder. The reset feature works by creating a new profile folder for you while saving your important data.
Add-ons normally stored inside the Firefox profile folder, such as extensions and themes, will be removed. Add-ons stored in other locations, such as plugins, will not be removed but any modified preferences (such as plugins you have disabled) will be reset.
Firefox will save these items:
  • Bookmarks
  • Browsing history
  • Passwords
  • Open windows, tabs and tab groups
  • Cookies
  • Web form auto-fill information
  • Personal dictionary
These items and settings will be removed:
Note: Your old Firefox profile 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. If you don't need this folder any longer, you should delete it as it contains sensitive information.
Source : Mozilla Support

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