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.

Avatar for Username

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

Firefox Sync Browser History Keys

  • 1 tontu
  • 0 am na jafe-jafe bii
  • i mujjee tontu mooy cor-el

scartheslayer
scartheslayer
more options

If you choose to sync your browser history through firefox sync, does mozilla have a way to generate the relevant cryptographic keys to decipher your data on their servers? I know that they say even Mozilla doesn't have access to your data - even when at rest - but I also noticed that they don't seem to utilize the term "zero-knowledge encryption." In other words, does mozilla have the technical capacity to decrypt data synced via mozilla sync?

If you choose to sync your browser history through firefox sync, does mozilla have a way to generate the relevant cryptographic keys to decipher your data on their servers? I know that they say even Mozilla doesn't have access to your data - even when at rest - but I also noticed that they don't seem to utilize the term "zero-knowledge encryption." In other words, does mozilla have the technical capacity to decrypt data synced via mozilla sync?

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

No, data is encrypted locally with a key derived from the password of the Sync account that only you know. Only this key or a recovery key you can optionally generate can decrypt the data stored on the Sync server.

Helpful?

Laajal dara

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.