Firefox Community Forum

Recently, I realized I haven't been logged into Firefox for the greater part of a year, and did so recently. I did so to sync my passwords with the cloud to restore in case something bad were to happen. Lo and behold, 2 days before doing this, my logins file corrupted. Attempting to open the .json in Firefox displays "unexpected character at line 1 column 1 of the JSON data". This file is pretty sizeable at 105 KB, so the info is on there, but I clearly cannot access it. I've also tried simply deleting the .corrupt extension and restarting Firefox, but it just instantly re-corrupts. Is there anyway to get my data back? Any advice is appreciated.

Out of 3 devices, one is not syncing at all. Here are my logs:

1743113687624 Sync.LogManager DEBUG Flushing file log 1743113687629 Sync.LogManager DEBUG Log cleanup threshold time: 1742249687629 1743113687633 Sync.LogManager DEBUG Done deleting files. 1743113689971 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113691803 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113692545 FirefoxAccounts DEBUG FxAccountsWebChannel message received: fxaccounts:fxa_status 1743113692546 FirefoxAccounts TRACE _receiveMessage for command fxaccounts:fxa_status 1743113692546 FirefoxAccounts DEBUG fxa_status received 1743113692546 FirefoxAccounts DEBUG fxa status ok=true - private=false, service=30b11ae57025e70b, context=oauth, pairing=false 1743113692804 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113692807 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113692816 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113693063 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113700192 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113714060 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113723954 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write - bumping score 1743113724845 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113734671 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write - bumping score 1743113734683 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113734718 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1743113735435 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113741241 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113772042 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113779831 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113783965 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113786207 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113787040 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113787410 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113788168 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113796655 Sync.RemoteTabs INFO Doing a tab sync. 1743113796655 Sync.Service DEBUG User-Agent: Firefox/136.0.4 (Windows NT 10.0; Win64; x64) FxSync/1.138.0.20250326231000.desktop 1743113796656 Sync.Service INFO Starting sync at 2025-03-28 00:16:36 in browser session XwJDOr_-ory1 1743113796656 Sync.Service DEBUG In sync: should login. 1743113796656 Sync.Service INFO User logged in successfully - verifying login. 1743113796656 Sync.RemoteTabs INFO Generating tab list with filter 1743113796658 FirefoxAccounts DEBUG FxAccountsProfileClient: Requested profile 1743113796658 FirefoxAccounts DEBUG getOAuthToken enter 1743113796658 FirefoxAccounts TRACE getCachedToken returning cached token 1743113796658 FirefoxAccounts DEBUG getOAuthToken returning a cached token 1743113796658 Sync.SyncAuthManager DEBUG unlockAndVerifyAuthState already has (or can fetch) sync keys 1743113796658 Services.Common.RESTRequest DEBUG GET request to https://profile.accounts.firefox.com/v1/profile 1743113796659 Sync.Status DEBUG Status.login: error.login.reason.network => success.status_ok 1743113796659 Sync.Status DEBUG Status.service: error.login.failed => error.login.failed 1743113796659 Sync.Service DEBUG Fetching unlocked auth state returned success.status_ok 1743113796677 Sync.RemoteTabs INFO Final tab list has 0 clients with 0 tabs. 1743113796967 Services.Common.RESTRequest DEBUG GET https://profile.accounts.firefox.com/v1/profile 304 1743113797647 FirefoxAccounts INFO Polling device commands. 1743113797648 Sync.Service DEBUG User-Agent: Firefox/136.0.4 (Windows NT 10.0; Win64; x64) FxSync/1.138.0.20250326231000.desktop 1743113797648 Sync.Service INFO Starting sync at 2025-03-28 00:16:37 in browser session XwJDOr_-ory1 1743113797648 Sync.Service DEBUG In sync: should login. 1743113797648 Sync.Service DEBUG Exception calling WrappedLock: LockException: Could not acquire lock. Label: "service.js: login".(resource://services-sync/util.sys.mjs:43:5) JS Stack trace: LockException@util.sys.mjs:43:5 throwLockException@util.sys.mjs:127:11 WrappedLock@util.sys.mjs:141:15 WrappedCatch@util.sys.mjs:112:27 login@service.sys.mjs:1052:66 sync/<@service.sys.mjs:1330:26 WrappedCatch@util.sys.mjs:112:27 sync@service.sys.mjs:1338:7 1743113797648 Sync.Service INFO Cannot start sync: already syncing? 1743113797648 Sync.Service DEBUG Not syncing: login returned false. 1743113797650 Services.Common.RESTRequest DEBUG GET request to https://api.accounts.firefox.com/v1/account/device/commands?index=0 1743113798140 Services.Common.RESTRequest DEBUG GET https://api.accounts.firefox.com/v1/account/device/commands?index=0 200 1743113798141 Hawk DEBUG (Response) /account/device/commands?index=0: code: 200 - Status text: 1743113798141 Hawk DEBUG Clock offset vs https://api.accounts.firefox.com/v1: -150141 1743113807510 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113807915 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1743113808650 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write - bumping score 1743113817719 Sync.Resource WARN GET request to https://sync-1-us-west1-g.sync.services.mozilla.com/1.5/207027195/info/collections failed: [Exception... "The connection has timed out" nsresult: "0x804b000e (NS_ERROR_NET_TIMEOUT)" location: "<unknown>" data: no] No traceback available 1743113817720 Sync.Service DEBUG verifyLogin failed: [Exception... "The connection has timed out" nsresult: "0x804b000e (NS_ERROR_NET_TIMEOUT)" location: "<unknown>" data: no] No traceback available 1743113817720 Sync.Status DEBUG Status.login: success.status_ok => error.login.reason.network 1743113817720 Sync.Status DEBUG Status.service: error.login.failed => error.login.failed 1743113817720 Sync.Status DEBUG Status.login: error.login.reason.network => error.login.reason.network 1743113817720 Sync.Status DEBUG Status.service: error.login.failed => error.login.failed 1743113817720 Sync.ErrorHandler ERROR Sync encountered a login error 1743113817720 Sync.SyncScheduler DEBUG Clearing sync triggers and the global score. 1743113817722 Sync.SyncScheduler DEBUG Next sync in 3600000 ms. (why=schedule) 1743113817723 Sync.Service DEBUG Exception calling WrappedLock: Error: Login failed: error.login.reason.network(resource://services-sync/service.sys.mjs:1041:15) JS Stack trace: onNotify@service.sys.mjs:1041:15 1743113817723 Sync.Service DEBUG Not syncing: login returned false. 1743113817724 FirefoxAccounts TRACE not checking freshness of profile as it remains recent

It says Login failed, but I have successfully logged out and back into my firefox account.

I set up sync, I went thru my old passwords on my Mac browser Firefox and deleted many old/dead ones, expected to see the list on my iPhone Firefox browser to match. Signed in properly on both, pressed sync several times each time showing complete.

I'm still seeing PW's I deleted on my Mac in my Iphone's list...

What could be the problem? I have uBlock Origin ad blocker installed.

Thanks

My passwords are saved to my android phone, and home PC but I am trying to get them into my work PC and they will not show up. I had a master password turned on briefly but it was not functioning how I wanted it (enter the master password before it would put any of the other passwords in instead of once on start up). Now I turned the master password off, sync is turned on for both the android browser and the work pc, the phone has the passwords but the pc does not.

Thank you for your help.

I sync tabs with multiple devices, but I cannot get my tabs to sync with my iPad. I have tried scanning the QR code from my desktop browser. I have tried entering the password. The process never finishes on the iPad, even after the desktop browser said the process was complete.

Since Mozilla no longer supports Lockwise, I am trying to sync my iPhone to my laptop to get all my passwords. INstructions tell me "Sync Firefox on your phone or tablet 1. Open Firefox on your mobile device. 2. Go to the menu ( on iOS or on Android) and tap Sync and save data 3. Tap Ready to Scan and hold your phone over this code" First of all, this choice does not exist in the iPhone Firefox menu. If I go into "Settings" and press "Sync now" none of my passwords show up within Firefox. Please help. Thank you.

I have profiles on desktop , i had enabled sync in all profiles when the feature was first introduced. the account icon always showed that it is syncing , but in the sync tab , no visited tab list appears of any profile in both the desktop .,, i installed firefox on the android today to check synchronization but its tabs never show in desktop profile and the android tells last synchronization never....neither the desktop tabs appear in android history

so i signed into my firefox account on a new computer and every time i hit the sync now button it brings a pop up for half a second then it disappears and no changes happen to my bookmarks or any of my other synced data.looked through the forums could not find anything that was even similar to my problem

All my saved passwords are missing. I am synced and logged into an Android phone. I usually use an iphone but have not checked syncing there yet, or on a computer/laptop.

One time after renstall firefox i lost my password... . they didnt sync. Today i lost my recent tab. Today i opened firefox and a saw a lot of tat without information that they were like blank page. I thought Firefox had crashed and I closed it and opened it again. And I saw Firefox open without any tab. In the history section, I followed the last Windows and tabs, but it was a one site, not all my tabs. What are you doing in Firefox? Damage to your User Information?

Dear Firefox Support,

I recently installed a fresh copy of Windows 11 and then installed the latest version of the Firefox browser. However, when I try to sign in to my Firefox account, it does not sync any of my data. My bookmarks, passwords, browsing history, and other synced items are not appearing.

I have tried clicking the "Sync Now" button, but nothing happens. I would appreciate your assistance in resolving this issue so I can recover my data.

Thank you for your support.

Best regards,

Hi,

I recently recovered my Lenovo laptop and when I sign in my Mozilla account again, nothing happens - no bookmarks, passwords, history etc. are imported. I'm not sure if it's important to mention, but I had to recover my password, in order to sign in after the recovery of my laptop.

When I look at the history of my account, it looks as if it starts on the day I recovered my laptop. I am, however, pretty sure that I use the right sign-in e-mail address.

Is there any way I (or someone from the Mozilla support?) could search with my IP address or the name of my device to find out in which account any history appears prior to the day of my recovery?

Any help would be very much appreciated as I have lost a very big amount of data...

Thank you in advance!

Best, Paris

I can't get open tabs to sync from my other computer. Bookmarks synced and other info but I don't see anything about tabs from other devices. I've synced both ends, both are logged in and I've selected open tabs in both. Nothing,

I just created an account to sync my passwords and bookmarks from an old Macbook to a new one. I can see both devices on the Mozilla account but the Sync does not work. Nothing appears in my bookmarks.

thank you for your help.

Hi there,

I just got a new laptop a few days ago and I signed into my Mozilla account but none of my bookmarks or history is pulling up. Does it take a while?