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Cant import firefox profiles

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  • 1 has this problem
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  • Last reply by RunrigFan

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I have a folder called Firefox on the external hard drive

I have all my folders there. I copied to %appdata%Mozilla/Firefox/Profiles

When I refresh firefox, only the default folder is importing not my folder.

What am I doing wrong?

I have a folder called Firefox on the external hard drive I have all my folders there. I copied to %appdata%Mozilla/Firefox/Profiles When I refresh firefox, only the default folder is importing not my folder. What am I doing wrong?

All Replies (3)

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You can copy certain files with Firefox closed to the current profile folder to transfer or recover personal data. Note that best is to avoid copying a full profile folder.


  • bookmarks and history: places.sqlite
  • favicons: favicons.sqlite
  • bookmark backups: compressed .jsonlz4 JSON backups in the bookmarkbackups folder
  • cookies.sqlite for the Cookies
  • formhistory.sqlite for saved autocomplete Form Data
  • logins.json (encrypted logins;32+) and key4.db (decryption key;58+) for Passwords saved in the Password Manager
    key3.db support ended in 73+; to use key3.db in 58-72, make sure to remove key4.db
  • cert9.db (58+) for (intermediate) certificates stored in the Certificate Manager
  • persdict.dat for words added to the spell checker dictionary
  • permissions.sqlite for Permissions and possibly content-prefs.sqlite for other website specific data (Site Preferences)
  • sessionstore.jsonlz4 for open tabs and pinned tabs (see also the sessionstore-backups folder)

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.

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