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deletetion of Old Firefox Data folder

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  • 2 have this problem
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  • Last reply by cor-el

gville
gville

I used "refresh" Firefox then up popped "oops", lost all bookmarks, etc.. Now have Old Firefox Data file on desktop. May I simply delete as I revisited important sites as if the first time.

I used "refresh" Firefox then up popped "oops", lost all bookmarks, etc.. Now have Old Firefox Data file on desktop. May I simply delete as I revisited important sites as if the first time.

Chosen solution

You can copy files like these from the "Old Firefox Data" folder on the desktop to the current Firefox profile folder to recover specific data. Be cautious with copying SQLite databases if you previously had problems.

  • bookmarks and history: places.sqlite
  • bookmark backups: JSON backups in the bookmarkbackups folder
  • cookies.sqlite for the cookies
  • formhistory.sqlite for saved form data
  • logins.json and key3.db (decryption key) for Passwords saved in the Password Manager
  • cert8.db and possibly cert_override.txt for (intermediate) certificates stored in the Certificate Manager
  • persdict.dat for words you added to the spelling checker dictionary
  • permissions.sqlite for Permissions and possibly content-prefs.sqlite for other Site Preferences
  • sessionstore.js for open tabs and pinned tabs

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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cor-el
cor-el
  • Moderator

Chosen Solution

You can copy files like these from the "Old Firefox Data" folder on the desktop to the current Firefox profile folder to recover specific data. Be cautious with copying SQLite databases if you previously had problems.

  • bookmarks and history: places.sqlite
  • bookmark backups: JSON backups in the bookmarkbackups folder
  • cookies.sqlite for the cookies
  • formhistory.sqlite for saved form data
  • logins.json and key3.db (decryption key) for Passwords saved in the Password Manager
  • cert8.db and possibly cert_override.txt for (intermediate) certificates stored in the Certificate Manager
  • persdict.dat for words you added to the spelling checker dictionary
  • permissions.sqlite for Permissions and possibly content-prefs.sqlite for other Site Preferences
  • sessionstore.js for open tabs and pinned tabs

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.