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

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

data not transfered

  • 2 valiny
  • 1 manana an'ity olana ity
  • 1 view
  • Valiny farany nomen'i cor-el

more options

I have installed new update 56.0.1 and since update all my browser history and passwords have gone. I have tried copying and pasting into profile but old data profile will not paste into new data profile. I have spent 5 hours trying to retrieve my information with no success. I am wondering if firefox has set up a new account because it asked me to sign in which I could not remember my log in details so asked for new password. Since new password has been entered then no past information.

I have the old data file on my desktop but cannot paste. When I right click to paste then drop down menu shows no paste word.

Please help I have used firefox for years and years and cannot believe this has happened

I have installed new update 56.0.1 and since update all my browser history and passwords have gone. I have tried copying and pasting into profile but old data profile will not paste into new data profile. I have spent 5 hours trying to retrieve my information with no success. I am wondering if firefox has set up a new account because it asked me to sign in which I could not remember my log in details so asked for new password. Since new password has been entered then no past information. I have the old data file on my desktop but cannot paste. When I right click to paste then drop down menu shows no paste word. Please help I have used firefox for years and years and cannot believe this has happened

All Replies (2)

more options

If you are talking about sync;

Resetting the sync password, or changing its e-mail, will remove all data from the servers.

This is a security feature. https://support.mozilla.org/en-US/kb/ive-lost-my-firefox-sync-account-information

  • I've lost my Firefox Sync account information - What to do
  • I’ve forgotten, or don't have access to, my Firefox Account email address
more options

You can copy individual files like these with Firefox closed to the current profile folder to recover specific data.

  • bookmarks and history: places.sqlite
  • bookmark backups: compressed .jsonlz4 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.

See also;