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

Account login

  • 4 balasan
  • 3 ada masalah ini
  • 1 paparan
  • Balasan terakhir oleh ucould2

more options

I have located my sync key (it was on a hard drive from another computer running Win Xp) and I was hoping to sync all my devices (to the new sync) without loosing any of the stored information. I have tried all the email addresses I can think of to log into Firefox Sync, but I do not remember which one and what password goes with it. Is there any way to set up a new email address without loosing the information I have stored? Thanks for reading

I have located my sync key (it was on a hard drive from another computer running Win Xp) and I was hoping to sync all my devices (to the new sync) without loosing any of the stored information. I have tried all the email addresses I can think of to log into Firefox Sync, but I do not remember which one and what password goes with it. Is there any way to set up a new email address without loosing the information I have stored? Thanks for reading

All Replies (4)

more options
more options

Thanks for the reply. Do you know from which address sync would send emails to a user from. I was searching through all my past emails that came from Mozilla, is this the same address as sync? Thanks again for reading

more options

Assuming that all those other devices are connected to Sync prior to being upgraded to Firefox 29, you shouldn't need to mess around with your Sync key. The upgrade process from the old version of Sync to the new version is designed for minimal user involvement. The new version of Sync doesn't require the "Sync key / Recovery key", it uses a different type of encryption "key" that is derived from the account name and initial password, an is hidden from the user.

See this KB article - Sync your Firefox bookmarks, history, passwords and more

You shouldn't lose any data that is on the Sync server, and the data that is on the other PC's shouldn't be lost either.

more options

@the_edmeister & @zoli62, Thanks both for the replies, I am still going to run into a problem of not knowing which of my email addresses I used to originally authenticate, if not today but looking into the future at some stage I will need this information. You could PM me if you think I am creating a security risk by knowing from where the email would have come from, this is what I would use to search all my emails from the past 10 or so years? Along the same lines of profile, what happens if I physically transport my Firefox profile folder (eg. %APPDATA%\Mozilla\Firefox\Profiles\xxxxxxxx.default\.) to another computer as this would circumvent the downloading from the server part of sync. But will it be update the browsing history etc? Thanks for reading.