Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

Another person logged into my firefox using their account and all my password/bookmark got synced into their account. How to delete all my personal information

  • 1 reply
  • 2 have this problem
  • 12 views
  • Last reply by FredMcD

more options

Another person logged into my firefox with their firefox account and all my password, bookmark, history got synced to their account.

When that person logged into their machine with their account, all my password is being synced to them. even after deleting while signedin, signedout and signedin again, all these get synced again. Could you please help on how to delete my data from that persons account.

Thanking You, Sincerely, Jinet

Another person logged into my firefox with their firefox account and all my password, bookmark, history got synced to their account. When that person logged into their machine with their account, all my password is being synced to them. even after deleting while signedin, signedout and signedin again, all these get synced again. Could you please help on how to delete my data from that persons account. Thanking You, Sincerely, Jinet

All Replies (1)

more options

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

After, change the passwords on Everything.