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I have never managed to get Firefox Sync to work on my devices, I don't know why. I don't get an error message saying it failed or why it failed. I run Firefox on desktop (Linux) and Android, both always updated to the latest version.

My use case is simple, I just want my mobile Firefox to have all the bookmarks I have on desktop already.

On Android, when I go to my account settings it says "Las synced: never". Clicking the "Sync now" button does absolutely nothing.

On Desktop I go to Settings - Sync, press the Sync button. It appears to work, though no feedback is ever provided.

When I go to about:sync-log, on desktop, finally an error is shown. It seems to attempt to connect to https://sync-765-us-west-2.sync.services.mozilla.com/1.5/207352084/info/collections and fails. Manually going to the URL also fails on both desktop and mobile. Entire log below

1709188645048 Sync.LogManager DEBUG Flushing file log 1709188645050 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1709188645050 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1709188645052 Sync.LogManager DEBUG Log cleanup threshold time: 1708324645052 1709188645052 Sync.LogManager DEBUG Done deleting files. 1709188684156 FirefoxAccounts DEBUG FxAccountsWebChannel message received: fxaccounts:fxa_status 1709188684156 FirefoxAccounts DEBUG fxa_status received 1709188684156 FirefoxAccounts DEBUG service: sync 1709188684156 FirefoxAccounts DEBUG is private browsing: false 1709188684291 FirefoxAccounts DEBUG FxAccountsWebChannel message received: fxaccounts:loaded 1709188684291 FirefoxAccounts WARN Unrecognized FxAccountsWebChannel command: fxaccounts:loaded 1709188690370 FirefoxAccounts DEBUG FxAccountsWebChannel message received: fxaccounts:pair_preferences 1709188690446 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1709188690446 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1709188690446 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1709188690446 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1709188690496 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1709188767104 FirefoxAccounts DEBUG FxAccountsProfileClient: Requested profile 1709188767104 FirefoxAccounts DEBUG getOAuthToken enter 1709188767104 FirefoxAccounts TRACE getCachedToken returning cached token 1709188767104 FirefoxAccounts DEBUG getOAuthToken returning a cached token 1709188767104 Services.Common.RESTRequest DEBUG GET request to https://profile.accounts.firefox.com/v1/profile 1709188767361 Services.Common.RESTRequest DEBUG GET https://profile.accounts.firefox.com/v1/profile 304 1709188768376 Sync.RemoteTabs INFO Generating tab list with filter 1709188768377 Sync.RemoteTabs INFO Final tab list has 0 clients with 0 tabs. 1709188991788 FirefoxAccounts ERROR Pairing channel error: Error: WebSocket unexpectedly closed(resource://gre/modules/FxAccountsPairingChannel.sys.mjs:3599:20) JS Stack trace: FxAccountsPairingChannel</_setupListeners/<@FxAccountsPairingChannel.sys.mjs:3599:20 1709189210399 FirefoxAccounts DEBUG FxAccountsWebChannel message received: fxaccounts:fxa_status 1709189210400 FirefoxAccounts DEBUG fxa_status received 1709189210400 FirefoxAccounts DEBUG service: 30b11ae57025e70b 1709189210400 FirefoxAccounts DEBUG is private browsing: false 1709189279244 Sync.SyncScheduler DEBUG Network link status changed to "changed". Offline?: false 1709189285734 Sync.SyncScheduler DEBUG Network link status changed to "changed". Offline?: false 1709189303334 Sync.SyncScheduler DEBUG Network link status changed to "changed". Offline?: false 1709189310511 Sync.SyncScheduler DEBUG Network link status changed to "changed". Offline?: false 1709189312578 Sync.SyncScheduler DEBUG Network link status changed to "changed". Offline?: false 1709189527477 FirefoxAccounts DEBUG FxAccountsProfileClient: Requested profile 1709189527477 FirefoxAccounts DEBUG getOAuthToken enter 1709189527477 FirefoxAccounts TRACE getCachedToken returning cached token 1709189527477 FirefoxAccounts DEBUG getOAuthToken returning a cached token 1709189527477 Services.Common.RESTRequest DEBUG GET request to https://profile.accounts.firefox.com/v1/profile 1709189527975 Services.Common.RESTRequest DEBUG GET https://profile.accounts.firefox.com/v1/profile 304 1709189534135 Sync.Service DEBUG User-Agent: Firefox/123.0 (Linux x86_64) FxSync/1.125.0.20240219145322.desktop 1709189534135 Sync.Service INFO Starting sync at 2024-02-29 06:52:14 in browser session 1LYtwG18bBEH 1709189534135 Sync.Service DEBUG In sync: should login. 1709189534135 Sync.Service INFO User logged in successfully - verifying login. 1709189534135 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1709189534135 Sync.SyncAuthManager DEBUG unlockAndVerifyAuthState already has (or can fetch) sync keys 1709189534135 Sync.Status DEBUG Status.login: error.login.reason.network => success.status_ok 1709189534135 Sync.Status DEBUG Status.service: error.login.failed => error.login.failed 1709189534135 Sync.Service DEBUG Fetching unlocked auth state returned success.status_ok 1709189534136 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1709189538030 Sync.Resource WARN GET request to https://sync-765-us-west-2.sync.services.mozilla.com/1.5/207352084/info/collections failed: [Exception... "The connection was established, but no data was ever received" nsresult: "0x804b0014 (NS_ERROR_NET_RESET)" location: "<unknown>" data: no] No traceback available 1709189538030 Sync.Service DEBUG verifyLogin failed: [Exception... "The connection was established, but no data was ever received" nsresult: "0x804b0014 (NS_ERROR_NET_RESET)" location: "<unknown>" data: no] No traceback available 1709189538031 Sync.Status DEBUG Status.login: success.status_ok => error.login.reason.network 1709189538031 Sync.Status DEBUG Status.service: error.login.failed => error.login.failed 1709189538031 Sync.Status DEBUG Status.login: error.login.reason.network => error.login.reason.network 1709189538031 Sync.Status DEBUG Status.service: error.login.failed => error.login.failed 1709189538031 Sync.ErrorHandler ERROR Sync encountered a login error 1709189538032 Sync.SyncScheduler DEBUG Clearing sync triggers and the global score. 1709189538032 Sync.SyncScheduler DEBUG Next sync in 3600000 ms. (why=schedule) 1709189538034 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 1709189538034 Sync.Service DEBUG Not syncing: login returned false. 1709189538035 FirefoxAccounts TRACE not checking freshness of profile as it remains recent

Firefox on Android has a "Collections" option,it is convenient displaying some websites on the startup page.But "Collections" seems not to be synced.It might be more useful if add the option to Sync List. Or it can be used as a specific section of the bookmark (but displayed on the startup page), similar to the bookmarks toolbar on PC. This makes it possible to sync frequently useful websites on both mobile and PC devices. Thank you for reading this.

I reset Windows yesterday to attempt to fix a problem with my computer. After redownloading Firefox and signing into a few basic things (including my Mozilla account), I realised all my logins were gone. I have followed the steps in [[this tutorial|https://support.mozilla.org/en-US/questions/1310179]] but it didn't work - I think saving logins in this instance of Firefox overwrote the other logins file, as when I opened it, it only had the login info from what I logged into after I reset.

Looking at my connected services, it seems the instance of Firefox from before I reset is still open. I mention this just because it's possible that this would contribute to a solution.

Any help is greatly appreciated as I have a number of securely generated passwords and cannot access a good deal of my accounts.

I have a question regarding syncing. Is there a way to remotely remove all synced information from Firefox on a particular PC without actually accessing it? For example, if I sync my home PC Firefox with my laptop or my work PC. Then, one day, for some reason I no longer have access to my work PC, and all of my sensitive information is there. Or if I lose my laptop, or if it is stolen... Is it possible to remove all sensitive information from a remote synced PC? Alternatively, is there a way to remove all synced information every time I close the browser? This way I can remove a particular PC in my Firefox account and once the browser is restarted at the remote location, the data will no longer be pulled and synced. Can this be done? Thanks in advance!

Good evening,

I have a new laptop, from the same brand and make as my old one, both are HP pavilion with the same configuration and only 2 years in between! I have been trying on and off for weeks, to synchronise my FF browser, with all open tabs, history and bookmarks, but all to no avail. I do everything the sync instruction tells me to do, but nothing happens. I am getting desparate, because my old laptop has a problem (hardware, nothing that could prevent synchronising) and is still under warranty, but time is running out!

Will anybody help here, and how do I receive answers?

Trying to sync between my PC and my iphone. Every time I've attempted it I've gotten this type of error report. And when I press sync on my iphone it tells me that sync is offline. I've logged out and back in a few times on both devices and I've also tried turning sync on and off again and it's not working. Tried syncing again and it didn't show up on my other pc either.

1705467584142 Sync.LogManager DEBUG Flushing file log 1705467584145 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1705467584145 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1705467584145 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1705467584145 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1705467584148 Sync.LogManager DEBUG Log cleanup threshold time: 1704603584148 1705467584158 Sync.LogManager DEBUG Done deleting files. 1705467586817 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1705467587873 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1705467588918 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1705467588923 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write - bumping score 1705468406145 FirefoxAccounts TRACE observed topic=push-message, data=chrome://fxa-device-update, subject=[xpconnect wrapped nsISupports] 1705468406145 FirefoxAccounts TRACE FxAccountsPushService _onPushMessage 1705468406145 FirefoxAccounts DEBUG push command: fxaccounts:device_connected 1705468406145 FirefoxAccounts INFO fetching updated device list 1705468406145 FirefoxAccounts INFO Already fetching device list, return existing promise 1705468406164 Services.Common.RESTRequest DEBUG GET request to https://api.accounts.firefox.com/v1/account/devices?filterIdleDevicesTimestamp=1703654006162 1705468408408 Services.Common.RESTRequest DEBUG GET https://api.accounts.firefox.com/v1/account/devices?filterIdleDevicesTimestamp=1703654006162 200 1705468408409 Hawk DEBUG (Response) /account/devices?filterIdleDevicesTimestamp=1703654006162: code: 200 - Status text: 1705468408409 Hawk DEBUG Clock offset vs https://api.accounts.firefox.com/v1: -409 1705468408409 FirefoxAccounts INFO Got new device list: 0114f71fc43f1c0abec31f11ea4c4f8c, 21486e339a18328ea65760b3cfdc661e, 73c3e7eb9def85f369143f46fe5ad619, c7ab28df9f8b9556bcb602d268c3282e 1705468408410 FirefoxAccounts TRACE Our push subscription looks OK 1705468408410 FirefoxAccounts INFO updating the cache 1705468448524 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write - bumping score 1705468448533 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1705468450556 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1705468450676 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1705468451026 FirefoxAccounts DEBUG FxAccountsProfileClient: Requested profile 1705468451026 FirefoxAccounts DEBUG getOAuthToken enter 1705468451026 FirefoxAccounts TRACE getCachedToken returning cached token 1705468451026 FirefoxAccounts DEBUG getOAuthToken returning a cached token 1705468451026 Services.Common.RESTRequest DEBUG GET request to https://profile.accounts.firefox.com/v1/profile 1705468451226 Services.Common.RESTRequest DEBUG GET https://profile.accounts.firefox.com/v1/profile 304 1705468453581 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1705468453583 Sync.Engine.Tabs.Tracker DEBUG Detected a tab change, but conditions aren't met for a quick write or a score bump 1705468454872 Sync.Service DEBUG User-Agent: Firefox/121.0.1 (Windows NT 10.0; Win64; x64) FxSync/1.123.0.20240108143603.desktop 1705468454872 Sync.Service INFO Starting sync at 2024-01-16 23:14:14 in browser session 8sHSUqIJcFhS 1705468454872 Sync.Service DEBUG In sync: should login. 1705468454872 Sync.Service INFO User logged in successfully - verifying login. 1705468454872 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1705468454873 Sync.SyncAuthManager DEBUG unlockAndVerifyAuthState already has (or can fetch) sync keys 1705468454873 Sync.Status DEBUG Status.login: error.login.reason.network => success.status_ok 1705468454873 Sync.Status DEBUG Status.service: error.login.failed => error.login.failed 1705468454873 Sync.Service DEBUG Fetching unlocked auth state returned success.status_ok 1705468454873 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1705468454873 Sync.SyncAuthManager INFO Getting sync key 1705468454873 Sync.SyncAuthManager INFO Getting a sync token from: https://token.services.mozilla.com/1.0/sync/1.5 1705468454873 Sync.SyncAuthManager DEBUG Getting a token using OAuth 1705468454873 FirefoxAccounts DEBUG getOAuthToken enter 1705468454873 FirefoxAccounts TRACE getCachedToken returning cached token 1705468454873 FirefoxAccounts DEBUG getOAuthToken returning a cached token 1705468454873 Services.Common.TokenServerClient DEBUG Beginning OAuth token exchange: https://token.services.mozilla.com/1.0/sync/1.5 1705468454873 Services.Common.RESTRequest DEBUG GET request to https://token.services.mozilla.com/1.0/sync/1.5 1705468507773 Services.Common.RESTRequest DEBUG GET https://token.services.mozilla.com/1.0/sync/1.5 failed: 2152398862 - NS_ERROR_NET_TIMEOUT 1705468507773 Sync.SyncAuthManager ERROR Non-authentication error in _fetchTokenForUser: TokenServerClientNetworkError({"error":{}})(resource://services-common/tokenserverclient.sys.mjs:28:36) JS Stack trace: TokenServerClientNetworkError@tokenserverclient.sys.mjs:51:16 _tokenServerExchangeRequest@tokenserverclient.sys.mjs:235:13 1705468507773 Sync.Status DEBUG Status.login: success.status_ok => error.login.reason.network 1705468507773 Sync.Status DEBUG Status.service: error.login.failed => error.login.failed 1705468507773 Sync.SyncAuthManager INFO Failed to fetch the cluster URL: TokenServerClientNetworkError({"error":{}})(resource://services-common/tokenserverclient.sys.mjs:28:36) JS Stack trace: TokenServerClientNetworkError@tokenserverclient.sys.mjs:51:16 _tokenServerExchangeRequest@tokenserverclient.sys.mjs:235:13 1705468507774 Sync.Service DEBUG verifyLogin failed: TokenServerClientNetworkError({"error":{}})(resource://services-common/tokenserverclient.sys.mjs:28:36) JS Stack trace: TokenServerClientNetworkError@tokenserverclient.sys.mjs:51:16 _tokenServerExchangeRequest@tokenserverclient.sys.mjs:235:13 1705468507774 Sync.Status DEBUG Status.login: error.login.reason.network => error.login.reason.network 1705468507774 Sync.Status DEBUG Status.service: error.login.failed => error.login.failed 1705468507774 Sync.ErrorHandler ERROR Sync encountered a login error 1705468507774 Sync.SyncScheduler DEBUG Clearing sync triggers and the global score. 1705468507775 Sync.SyncScheduler DEBUG Next sync in 3600000 ms. (why=schedule) 1705468507776 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1705468507776 Sync.Service DEBUG Exception calling WrappedLock: Error: Login failed: error.login.reason.network(resource://services-sync/service.sys.mjs:1038:15) JS Stack trace: onNotify@service.sys.mjs:1038:15 1705468507776 Sync.Service DEBUG Not syncing: login returned false. 1705468507776 FirefoxAccounts TRACE not checking freshness of profile as it remains recent

Seems like when I tried logging in to my old account with a password reset, I somehow created a second account with the same email.

All my bookmarks and extension set ups seem to be gone.

Never had this issue, and have been using the same firefox account for like 5 years.

I was trying to get sync to work, I go to sign in and choose my google account, then I make my password for sync, when I press "Create Password" it just tells me "Unverified Session" in a red bar on top of my email, did I do something wrong?

Hi, Is there a possibility to delete the sync data without completely deleting the account? I used Firefox Sync to transfer some passwords and I understood that they are encrypted on the sync server. However, it might be that even the encryption might be broken and attackers could steal my passwords. That´s why I would like to delete the password data on the server (but keep the account).

Is this somehow possible? I didn´t find any article about exactly this topic.

Best regards, Sebastian

I know the answer to this is probably going to be along the lines of this is not possible, but I thought I'd ask anyway since none of the information is entirely clear. Or answers my exact question.

I have one desktop install of firefox and I have two android ones. I have all three synced to one firefox account, so it's easy to grab links I saved while wiki diving on something. While this works perfectly for the desktop side of things, the mobile side is where the issue arises.

Currently all my bookmarks from both mobile firefox accounts are merged into one long set, regardless of device. While the desktop ones have their own folder. Is there a way to keep the bookmarks from each device in their own separate folder? Like say instead of having one big mobile bookmarks folder, having one named DeviceX, and the other DeviceY?

It's still semi functional on desktop where I have more screen real estate and have to deliberately go to the mobile bookmarks folder, but on the phones it can be confusing when a set of bookmarks from device 1 mixes randomly into those of device 2. As it can become a lot harder to keep track of things.

Now I know one can turn off syncing of bookmarks. This is not what I'm looking for as I do still want to be able to share them between all three devices. Just have them more organised.

I also know one can make different accounts for say work or personal, but again I want them all to sync, just not mix them into one list.

So in short is there a way to be able to have two android devices into a threeway sync and keep the bookmarks separate? Or is my only option the round abound way of making subfolders and hope I remember to save in those?

Thanks either way.

Synced my new computer, received bookmark toolbar and 10 year old bookmarks from when i switched from interent explorer, but all my more recent bookmarks and bookmark folders are still missing on the new computer. Also didn't seem to transfer passwords and autofill info.

Yesterday, I noticed after I closed and re-opened Firefox, my browsing session was completely gone - all my tabs and windows, my entire browsing history, website sign-in status, all completely gone. I've been troubleshooting since then.

I've noticed that the 'sessionstore-backups' folder in my profile folder is missing. When I open Firefox, this folder is created and Firefox writes some data to it, but Firefox seems to delete the folder as soon as I quit Firefox. Firefox should not be doing this. My Firefox is configured to open previous windows and tabs, and is NOT configured to wipe any browsing data of any kind when it closes.

As a sanity check, I spun up a Windows Sandbox (briefly, it's a clean, isolated Windows environment) and installed Firefox there. I also enabled the option 'Open previous windows and tabs'. Firefox behaves normally - it re-opens the tabs/windows I had open when I quit Firefox. Great, that's what I expect. The trouble starts as soon as I sign in to sync. After signing in to sync, and letting the initial sync process complete, I open a couple of windows and tabs, then quit Firefox. Firefox begins nuking my browsing session again - the 'sessionstore-backups' folder is erased, and next time I start Firefox, all my windows and tabs are missing, and my browsing history is missing.

So, at this point, I'm assuming something in my synced data has become corrupt. I haven't installed any new extensions lately. I haven't changed any of Firefox's settings that would cause this to happen. The only thing I have done differently lately was enable Firefox Sync in LibreWolf and sign in to sync there. It seems like this session-nuking trouble started after I signed in to sync in LibreWolf. I assumed, since LibreWolf is a fork of Firefox, and because there were no warnings or indications the feature was incomplete/unstable/experimental/etc., that it would just work, that it wouldn't cause any issues. But it seems like it has caused issues. I checked LibreWolf's issues tracker for anything related to 'sync', but I didn't see anything noteworthy.

I've been using Firefox and Sync for numerous years without issue. This session-nuking thing started yesterday.

I use Firefox in a few places, and based on what I saw happen in my Windows Sandbox, this session-nuking issue is going to happen in every Firefox I'm signed in to as soon as it has a chance to sync. Obviously, I do not want this to happen.

What can I do to determine what the issue is? What can I do to check if something in my synced data has become corrupted? What can I do to reverse it? I'm not opposed to completely wiping/resetting my synced data, but I'd rather not if I don't have to. The only thing I would lose sleep over is my bookmarks, but I know I can export them. Are there any debug logs I can enable/look at? Anything I should look for in Event Viewer?

Thanks.

Synced Tabs from other device did show till yesterday but no longer showing

It just says "connect another device"

My other device had to be 'factory reset' but that was some time ago (nearly a month) and the tabs from it were still showing till yesterday in my main device, Now they've disappeared, is there a way to get those tabs back??

I read somewhere that those tabs are maybe on the Firefox server, is there a way to access those???

I can't see the SYNC option in Settings so I...

Use about:config to change identity.fxaccounts.enabled = true I can now see 'Sync' in Settings When I go to "Sign into Sync", after I enter my password, it hangs for 10 seconds, then says Working, then always just hangs there forever. If I login to Mozilla using a different tab, it signs in ok.

I have tried this after successfully changing the password, and after restarting firefox.

I am using the latest Firefox version.

Any suggestions gratefully accepted.

Hi. I want to sync with my work pc (it used to work just fine but when I synced to a newer third pc- successfully- it just stopped). When i try to sign in on the work pc it asks me for the primary password which it then FAILS to recognise to allow me to proceed! What's going on? I can't even log onto sites with saved passwords anymore. Any help appreciated.

Recently I had un/reinstalled my firefox via snap and apt from linux. I'm signed into my account yet locally I'm not getting data to sync across devices. Any idea?

Sadly, I am now forced to leave firefox. My passwords are getting "forgotten" more and more each day. Did i get hacked? Few passwords like proton mail I don't actually have anywhere else. Auto-Backup of firefox seems to be of the same day as the original??? So it loses the data then saves it twice? who designed this? I'm angry, not at firefox/mozilla. angry at myself for putting my trust in the first place. Chromium doesn't sync so it leaves me with chrome FFS. Does someone has a magic wand to recover the lost data? login.json is same day as original so not an option.

This is my second email to you....

I just switched to Firefox from Chrome, because Chrome was crashing all the time.

All I want to do is sync my computer, laptop, phone and Ipad's reading list. I want to be able to see an article on one device, add to the reading list, and have it on all devices.

I'm logged in under the same name on all, and it says sync is on, but the reading lists are different.

Can someone help me? My phone number is [removed phone# from public support forum], email is [removed email from public].

Thank you!

I have Firefox on 3 devices, I deleted several passwords from 1 device expecting this change to sync to the other 2 devices. Instead for several days the 2 devices showed the original number of passwords whilst the device I made the changes on showed the new amount. Now that device appears to have resynced the passwords I deleted. Am I supposed to delete them on each device?

I have the latest version of FF on all devices.

Firefox is installed on my desktop and on my cell. How can I get my cell to show all bookmarks that I have on my desktop? I already synced a few times but no change!