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

unable to sync anything from my sync account? nothing happends...

more options

I have a sync account has lot of my information.. when i try to sync the account.. nothing happenss...

I have a sync account has lot of my information.. when i try to sync the account.. nothing happenss...

All Replies (13)

more options

I am a newby so maybe not much help but I just had sync problems too. 1. There is a new sync and you need to have the latest Firefox version for it to work. 2. I thought syncing only worked between 2 devices - do you have 2 devices?

more options

The new version of Sync has been around since Firefox 29 - April 29, 2014, so unless you were purposely using an old version prior to Fx29 that shouldn't be an issue.

What lead up to having this problem with Sync? IOW, why did that device not have your Firefox data on it and needed to be synchronized?

more options

the-edmeister said

The new version of Sync has been around since Firefox 29 - April 29, 2014, so unless you were purposely using an old version prior to Fx29 that shouldn't be an issue. What lead up to having this problem with Sync? IOW, why did that device not have your Firefox data on it and needed to be synchronized?

NOthing special i just re installed windows 10 and try to sync with my account. nothing happens..

any clue.

more options

Any other devices connected to that Sync account? Any problems signing in to Sync after installing Win10? Like did you need to request a a new Password?

more options

the-edmeister said

Any other devices connected to that Sync account? Any problems signing in to Sync after installing Win10? Like did you need to request a a new Password?

Actually i forgot my password so i did request a new password ...after windows10 installed and trying to resync the bookmars

more options

You can check the about:sync-log page via the location/address bar to see if there are error logs available.

You can temporarily set the services.sync.log.appender.file.logOnSuccess pref to true on the about:config page to also get a log of a successful Sync.

Do not forget to reset the services.sync.log.appender.file.logOnSuccess pref to false after you have finished testing Sync or you will end up with a lot of unnecessary log files once the issue is resolved.

You can upload a recent log if the log is too big to put in a reply.


Try to delete the signedInUser.json file in the Firefox profile folder and delete the Weave folder (Sync was formerly named Weave).

If that isn't enough then delete the prefs.js files to reset all prefs and maybe also delete the compatibility.ini file to reinitialize the profile.

You can use this button to go to the current Firefox profile folder:

more options

Hi here is the log:

1442193672913 Sync.Service INFO Loading Weave 1.42.0 1442193672915 Sync.Engine.Clients DEBUG Engine initialized 1442193672915 Sync.Engine.Clients DEBUG Resetting clients last sync time 1442193672918 Sync.Engine.Bookmarks DEBUG Engine initialized 1442193672920 Sync.Engine.Forms DEBUG Engine initialized 1442193672922 Sync.Engine.History DEBUG Engine initialized 1442193672924 Sync.Engine.Passwords DEBUG Engine initialized 1442193672926 Sync.Engine.Prefs DEBUG Engine initialized 1442193672927 Sync.Engine.Tabs DEBUG Engine initialized 1442193672928 Sync.Engine.Tabs DEBUG Resetting tabs last sync time 1442193672931 Sync.Engine.Addons DEBUG Engine initialized 1442193672931 Sync.Service INFO Mozilla/5.0 (Windows NT 10.0; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0 1442193672933 Sync.SyncScheduler DEBUG Clearing sync triggers and the global score. 1442193672933 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1442193672934 Sync.Service DEBUG Caching URLs under storage user base: https://sync-197-us-west-2.sync.services.mozilla.com/1.5/29159703/ 1442193672934 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1442193672934 Sync.AddonsReconciler INFO Registering as Add-on Manager listener. 1442193672934 Sync.AddonsReconciler DEBUG Adding change listener. 1442193672934 Sync.Tracker.History INFO Adding Places observer. 1442193672943 Sync.Engine.AdblockPlus DEBUG Engine initialized 1442193672944 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1442193672949 FirefoxAccounts INFO returning partial account data as the login manager is locked. 1442193674204 Sync.SyncScheduler DEBUG Next sync in 600000 ms. 1442193675407 Sync.Tracker.History DEBUG Saving changed IDs to history 1442193678157 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1442193678157 Sync.SyncScheduler DEBUG Next sync in 595843 ms. 1442193721350 Sync.Tracker.History DEBUG Saving changed IDs to history 1442193722656 Sync.Tracker.History DEBUG Saving changed IDs to history 1442193734427 Sync.Tracker.History DEBUG Saving changed IDs to history 1442193738050 Sync.Tracker.History DEBUG Saving changed IDs to history 1442194131542 Sync.Service DEBUG User-Agent: Firefox/40.0.3 FxSync/1.42.0.20150826023504. 1442194131542 Sync.Service INFO Starting sync at 2015-09-13 20:28:51 1442194131542 Sync.Service DEBUG In sync: should login. 1442194131543 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1442194131543 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1442194131544 FirefoxAccounts INFO returning partial account data as the login manager is locked. 1442194131545 Sync.BrowserIDManager INFO Waiting for user to be verified. 1442194131545 FirefoxAccounts DEBUG already verified 1442194131546 Sync.BrowserIDManager INFO Starting fetch for key bundle. 1442194131546 Sync.BrowserIDManager INFO Unable to fetch keys (master-password locked?), so aborting token fetch 1442194131546 Sync.BrowserIDManager INFO Background fetch for key bundle done 1442194131546 Sync.Status DEBUG Status.login: success.login => success.login 1442194131546 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1442194131546 Sync.Service INFO Logging in the user. 1442194131546 Sync.Service DEBUG Caching URLs under storage user base: https://sync-197-us-west-2.sync.services.mozilla.com/1.5/29159703/ 1442194171446 Sync.BrowserIDManager DEBUG unlockAndVerifyAuthState: user declined to unlock master-password 1442194171455 Sync.Service DEBUG Fetching unlocked auth state returned service.master_password_locked 1442194171455 Sync.Status DEBUG Status.login: success.login => service.master_password_locked 1442194171455 Sync.Status DEBUG Status.service: success.status_ok => error.login.failed 1442194171455 Sync.SyncScheduler DEBUG Clearing sync triggers and the global score. 1442194171456 Sync.SyncScheduler DEBUG Couldn't log in: master password is locked. 1442194171456 Sync.SyncScheduler DEBUG Starting client-initiated backoff. Next sync in 900000 ms. 1442194171456 Sync.SyncScheduler DEBUG Next sync in 900000 ms.

more options

Looks like a problem with the master password:

1442194171446 Sync.BrowserIDManager DEBUG unlockAndVerifyAuthState: user declined to unlock master-password
1442194171455 Sync.Service DEBUG Fetching unlocked auth state returned service.master_password_locked
1442194171455 Sync.Status DEBUG Status.login: success.login => service.master_password_locked
1442194171455 Sync.Status DEBUG Status.service: success.status_ok => error.login.failed

Are you using the master password?

Do you get a prompt the enter the master password?

more options

kishore.fsc said

the-edmeister said
Any other devices connected to that Sync account? Any problems signing in to Sync after installing Win10? Like did you need to request a a new Password?

Actually i forgot my password so i did request a new password ...after windows10 installed and trying to resync the bookmars

Sorry. Requesting a new Password clears Sync data from the Sync server. The Password is used to create the encryption "key"; change the Password and the "key" is different - making it impossible to decrypt the data saved on the Sync server when that data is sent back to the device.

more options

the-edmeister said

kishore.fsc said
the-edmeister said
Any other devices connected to that Sync account? Any problems signing in to Sync after installing Win10? Like did you need to request a a new Password?

Actually i forgot my password so i did request a new password ...after windows10 installed and trying to resync the bookmars

Sorry. Requesting a new Password clears Sync data from the Sync server. The Password is used to create the encryption "key"; change the Password and the "key" is different - making it impossible to decrypt the data saved on the Sync server when that data is sent back to the device.

what is there any other way to retrieve this??? requesting new password will clear existing sync data?

more options

The currently used new Sync version still uses the Sync key to encrypt data locally before uploading, but this Sync key is generated internally from the password of your Firefox account, so you no longer need to worry about it. Without the correct password it isn't possible to decrypt the data stored on the Sync server because the correct Sync key can't be generated. The Sync key changes when you change the password of the Firefox account and you lose all data stored on the Sync server doing that.

more options

cor-el said

The currently used new Sync version still uses the Sync key to encrypt data locally before uploading, but this Sync key is generated internally from the password of your Firefox account, so you no longer need to worry about it. Without the correct password it isn't possible to decrypt the data stored on the Sync server because the correct Sync key can't be generated. The Sync key changes when you change the password of the Firefox account and you lose all data stored on the Sync server doing that.

Thanks, iam asking can i get my old data by any chance?

is that completed gone? iam using my sync account from past few years i had lots of bookmarks in it?

can i get it back?

more options

Sorry, your data is gone as a result of requesting a new password.

Even if Mozilla would make it so that data was able to be retrieved, that data would be useless - there would be no "key" to make decryption possible.

IMO, the encryption setup used for Sync services is too strong; other than password data, user data saved in Firefox doesn't need the level of sophistication that is provided by Sync. Password data by itself could be protected in a manner so that the entirety of the data isn't encrypted.

Then there's the fact that Sync wasn't intended to be used as a backup medium as it sounds like you have tried to use it. Used as intended, when getting a new password the user data would still be on one of the other connected devices and the data would sync back to the server and would be available on for the new installation.