منتدى دعم ”Firefox“

I try to set up Firefox Sync on Firefox on a VM on Fedora. I enter my e-mail and password. Then I get the message (after retrying): "Email resent. Add accounts@firefox.com to your contacts to ensure a smooth delivery." However, I do not get the email with the confirmation code.

My email address has this format j@xxxxx.org

I've spent a long time tidying up the passwords on my main PC. Every so often I did a manual sync too. I also imported into Edge occasionally and I noticed a few sites' details there that I had deleted from FF. Strange! Anyway, I finished the tidy up and went to my Android phone (set up to sync) and did the sync there and it looked OK. I then had the idea to look here for the 'extra' one I had seen in Edge and sure enough it was there! I also noticed lots of others I had deleted from the 'Master'. Changes to passwords had been replicated successfully though. What is the logic for syncing in these instances? I then signed out of FF on the phone to stop the sync and deleted one that was common to both and then signed back in and synced - it did delete it from the PC when I synced that. This makes me nervous to delete them all from the phone when signed out and syncing upon re-connect. So, what is the safe way to make the password details from the PC be an exact copy on the phone - no extras?! My thoughts were to disconnect the phone (but hoped it would remove things), delete the details manually if required, sign back in and re-sync. But I don't want to risk the sync actually wiping out the contents of the PC! Thanks! TL;DR - how can I safely remove the synced contents from one device and then resync it. Currently, the contents across devices is different after a sync.

I am not a geek and I follow all the details of 'how to etc etc' but nothing works and the phone goes into random loops and keeps telling my I cannot sync (I KNOW that). Firefox has no phone number or email system for technical support (or any type of support) just this hit and miss system of 'forums' (or is that fora). I tried to send a bug report but I am NOT signing up for another (geek speak) account just to send you the problem. Please fix this issue - it never used to happen on older versions - how can I roll back my firefox to something that works properly?? Here is the error report, enjoy, to me it is written in ancient g(r)eek!

1659608046381 Sync.SyncScheduler DEBUG Next sync in 600000 ms. (why=schedule) 1659608314611 FirefoxAccounts DEBUG FxAccountsProfileClient: Requested profile 1659608314611 FirefoxAccounts DEBUG getOAuthToken enter 1659608314612 FirefoxAccounts TRACE getCachedToken returning cached token 1659608314612 FirefoxAccounts DEBUG getOAuthToken returning a cached token 1659608314613 Services.Common.RESTRequest DEBUG GET request to https://profile.accounts.firefox.com/v1/profile 1659608315651 Services.Common.RESTRequest DEBUG GET https://profile.accounts.firefox.com/v1/profile 304 1659608317134 FirefoxAccounts DEBUG FxAccountsWebChannel message received: fxaccounts:fxa_status 1659608317134 FirefoxAccounts DEBUG fxa_status received 1659608317134 FirefoxAccounts DEBUG service: sync 1659608317134 FirefoxAccounts DEBUG is private browsing: true 1659608317329 FirefoxAccounts DEBUG FxAccountsWebChannel message received: fxaccounts:loaded 1659608317329 FirefoxAccounts WARN Unrecognized FxAccountsWebChannel command: fxaccounts:loaded 1659608320303 FirefoxAccounts DEBUG FxAccountsWebChannel message received: fxaccounts:pair_preferences 1659608320908 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608320908 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608320908 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608320909 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608321321 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608321322 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608321367 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608434712 FirefoxAccounts DEBUG FxAccountsPush loading service 1659608434712 FirefoxAccounts DEBUG FxAccountsPush initialized 1659608434747 FirefoxAccounts TRACE observed topic=push-message, data=chrome://fxa-device-update, subject=[xpconnect wrapped nsISupports] 1659608434747 FirefoxAccounts TRACE FxAccountsPushService _onPushMessage 1659608434753 FirefoxAccounts DEBUG push command: fxaccounts:device_disconnected 1659608434754 FirefoxAccounts DEBUG Notifying observers of fxaccounts:device_disconnected 1659608434754 FirefoxAccounts INFO fetching updated device list 1659608434754 Sync.Engine.Clients DEBUG Updating the known stale clients 1659608434754 Sync.Engine.Clients DEBUG Refreshing the known stale clients list 1659608434757 Services.Common.RESTRequest DEBUG GET request to https://api.accounts.firefox.com/v1/account/devices 1659608435790 Services.Common.RESTRequest DEBUG GET https://api.accounts.firefox.com/v1/account/devices 200 1659608435791 Hawk DEBUG (Response) /account/devices: code: 200 - Status text: OK 1659608435791 Hawk DEBUG Clock offset vs https://api.accounts.firefox.com/v1: -2791 1659608435792 FirefoxAccounts INFO Got new device list: 3bab5932266da6469edabb3b022d462f, 622e1483fa5b0564fc504f75d009b422, 6bf539feb208fd2a1eaf7bf820de34f0, 73ad7ca5e184fd5a50f2f48dd70866d1, 7c41118e2a1f1174997c0cce0f12284c, 7e2285d6c17f0fb8bf12ddb7d479892f, c66b82cce8ac7a7972116bff3d23ce2e, e48e0ecaf75ca3b8b9c64b315ed4be22 1659608435793 FirefoxAccounts INFO updating the cache 1659608623665 FirefoxAccounts ERROR Pairing channel error: Error: WebSocket unexpectedly closed(resource://gre/modules/FxAccountsPairingChannel.js:3601:20) JS Stack trace: FxAccountsPairingChannel</_setupListeners/<@FxAccountsPairingChannel.js:3601:20 1659608646390 Sync.Service DEBUG User-Agent: Firefox/103.0.1 (Windows NT 6.1; Win64; x64) FxSync/1.105.0.20220729222726.desktop 1659608646391 Sync.Service INFO Starting sync at 2022-08-04 12:24:06 in browser session kSKF98oczh8c 1659608646392 Sync.SyncScheduler DEBUG Clearing sync triggers and the global score. 1659608646402 Sync.Status INFO Resetting Status. 1659608646402 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1659608646405 FirefoxAccounts DEBUG FxAccountsProfileClient: Requested profile 1659608646405 FirefoxAccounts DEBUG getOAuthToken enter 1659608646408 FirefoxAccounts TRACE getCachedToken returning cached token 1659608646408 FirefoxAccounts DEBUG getOAuthToken returning a cached token 1659608646410 Services.Common.RESTRequest DEBUG GET request to https://profile.accounts.firefox.com/v1/profile 1659608646715 Sync.Resource DEBUG GET success 200 https://sync-1-us-west1-g.sync.services.mozilla.com/1.5/148151151/info/collections 1659608646717 Sync.Service DEBUG Fetching server configuration: https://sync-1-us-west1-g.sync.services.mozilla.com/1.5/148151151/info/configuration 1659608646909 Sync.Resource DEBUG GET success 200 https://sync-1-us-west1-g.sync.services.mozilla.com/1.5/148151151/info/configuration 1659608646911 Sync.Service DEBUG Fetching global metadata record 1659608646911 Sync.Service DEBUG Weave Version: 1.105.0 Local Storage: 5 Remote Storage: 5 1659608646911 Sync.Service DEBUG Fetching and verifying -- or generating -- symmetric keys. 1659608646912 Sync.Service INFO Testing info/collections: {"bookmarks":1659608043.52,"extension-storage":1605357784.56,"clients":1659606031.62,"meta":1596625959.52,"forms":1659075090.37,"crypto":1578385419.9,"history":1659111154.3,"passwords":1656864350.76,"addons":1654102992.88} 1659608646912 Sync.CollectionKeyManager INFO Testing for updateNeeded. Last modified: 1578385419.9 1659608646912 Sync.Synchronizer DEBUG Refreshing client list. 1659608646913 Sync.Engine.Clients DEBUG Resetting clients last sync time 1659608647128 Sync.Collection DEBUG GET success 200 https://sync-1-us-west1-g.sync.services.mozilla.com/1.5/148151151/storage/clients?full=1&limit=1000 1659608647138 Sync.Engine.Clients INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 2 reconciled. 1659608647139 Sync.Engine.Clients DEBUG Refreshing the known stale clients list 1659608647152 Sync.Engine.Clients INFO Uploading 0 outgoing records 1659608647155 Sync.Synchronizer INFO Updating enabled engines: 2 clients. 1659608647157 Sync.Synchronizer INFO Syncing all enabled engines. 1659608647162 Sync.Engine.Passwords INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647162 Sync.Engine.Passwords INFO Uploading 0 outgoing records 1659608647163 Sync.Engine.Bookmarks DEBUG Checking if server sync ID EcjFZAdZwynf matches existing 1659608647169 Sync.Engine.Bookmarks INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647169 Sync.Engine.Bookmarks.Mirror DEBUG Merging bookmarks in Rust 1659608647173 Sync.Engine.Bookmarks.Mirror DEBUG Building local tree 1659608647179 Sync.Engine.Bookmarks.Mirror DEBUG Building remote tree 1659608647190 Sync.Engine.Bookmarks.Mirror DEBUG Building merged tree 1659608647190 Sync.Engine.Bookmarks.Mirror DEBUG Applying merged tree 1659608647191 Sync.Engine.Bookmarks.Mirror DEBUG Merging bookmarks in Rust took 21.432ms 1659608647191 Sync.Engine.Bookmarks.Mirror DEBUG No changes detected in both mirror and Places 1659608647192 Sync.Engine.Bookmarks INFO Uploading 0 outgoing records 1659608647208 Sync.Engine.Bookmarks.BookmarkSyncUtils DEBUG pushChanges: Processed change records: {"weak":0,"skipped":0,"updated":0} 1659608647209 Sync.Engine.Addons DEBUG Refreshing reconciler state 1659608647209 Sync.AddonsReconciler INFO Refreshing global state from AddonManager. 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Mount Rainier Sunset by M♥Donna (version=6.0, id={c55346b8-b052-4db2-9267-61b7df3f29ef}) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Mountain Theme (version=2.0, id={0f13a6cc-fbbb-41a6-b42e-314514cce874}) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Facebook Container (version=2.1.1, id=@contain-facebook) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Dictionnaire français (version=7.0b, id=fr-dicollecte@dictionaries.addons.mozilla.org) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon DuckDuckGo Privacy Essentials (version=2020.8.18, id=jid1-ZAdIEUB7XOzOJw@jetpack) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon The Diving Collie (version=2.0, id={c20ca56b-78c1-4d5a-bbe3-b978c435be69}) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Ducati Bike Theme (version=2.0, id={f8818a98-92c6-4355-98e9-8a2f86abb14e}) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon AdBlock — best ad blocker (version=4.43.0, id=jid1-NIfFY2CA8fy1tg@jetpack) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon British English Dictionary (Marco Pinto) (version=3.0.7, id=marcoagpinto@mail.telepac.pt) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Français Language Pack (version=103.0.1buildid20220729.222726, id=langpack-fr@firefox.mozilla.org) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon English (GB) Language Pack (version=103.0.1buildid20220729.222726, id=langpack-en-GB@firefox.mozilla.org) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Form Autofill (version=1.0.1, id=formautofill@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Firefox Screenshots (version=39.0.1, id=screenshots@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon WebCompat Reporter (version=1.5.0, id=webcompat-reporter@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Web Compatibility Interventions (version=103.0.0, id=webcompat@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon DoH Roll-Out (version=2.0.0, id=doh-rollout@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Picture-In-Picture (version=1.0.0, id=pictureinpicture@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Google (version=1.2, id=google@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Amazon.com (version=1.3, id=amazondotcom@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Bing (version=1.3, id=bing@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon DuckDuckGo (version=1.1, id=ddg@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon eBay (version=1.3, id=ebay@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Wikipedia (en) (version=1.1, id=wikipedia@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Amazon.co.uk (version=1.9, id=amazon@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon System theme — auto (version=1.3, id=default-theme@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Light (version=1.2, id=firefox-compact-light@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Dark (version=1.2, id=firefox-compact-dark@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Firefox Alpenglow (version=1.4, id=firefox-alpenglow@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Add-ons Search Detection (version=2.0.0, id=addons-search-detection@mozilla.com) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon OpenH264 Video Codec provided by Cisco Systems, Inc. (version=1.8.1.2, id=gmp-gmpopenh264) 1659608647213 Sync.AddonsReconciler DEBUG Rectifying state for addon Widevine Content Decryption Module provided by Google Inc. (version=null, id=gmp-widevinecdm) 1659608647215 Sync.AddonsReconciler INFO Saving reconciler state to file: addonsreconciler 1659608647222 Sync.Engine.Addons.Store DEBUG gmp-gmpopenh264 not syncable: type not in allowed list: plugin 1659608647223 Sync.Engine.Addons INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647224 Sync.Engine.Addons INFO Uploading 0 outgoing records 1659608647225 Sync.Engine.Forms INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647226 Sync.Engine.Forms INFO Uploading 0 outgoing records 1659608647226 Sync.Engine.History DEBUG Checking if server sync ID x56-DiRAUha6 matches existing 1659608647228 Sync.Engine.History INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647228 Sync.Engine.History INFO Uploading 0 outgoing records 1659608647232 Sync.Engine.Extension-Storage INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647233 Sync.Engine.Extension-Storage INFO Uploading 0 outgoing records 1659608647234 Sync.Doctor INFO Skipping check of passwords - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping check of bookmarks - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping check of addons - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping check of forms - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping check of history - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping check of extension-storage - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping validation: no engines qualify 1659608647234 Sync.Status DEBUG Status.sync: success.sync => success.sync 1659608647234 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1659608647234 Sync.Synchronizer INFO Sync completed at 2022-08-04 12:24:07 after 0.83 secs. 1659608647235 Sync.Declined DEBUG Handling remote declined: ["prefs","tabs"] 1659608647235 Sync.Declined DEBUG Handling local declined: ["prefs","tabs"] 1659608647235 Sync.Declined DEBUG Declined changed? false 1659608647235 Sync.Service INFO No change to declined engines. Not reuploading meta/global. 1659608647236 Sync.SyncScheduler DEBUG Next sync in 600000 ms. (why=schedule)

Although I have disabled all relevant "sync" settings in Firefox, the browser is still syncing tabs across my MacBookAir and my iMac.

To make matters worse, tabs in Chrome and Safari sync to Firefox tabs across devices as well. The sync occurs in both directions.

I am not logged into Chrome or my gmail account.

Specs: MacBookAir: early 2015/ OS v. 12.7 (Monterey) iMac: Retina 4K, 21.5-inch, 2017 / OS 12.6.8 (Monterey)

Things I've tried:

• Turning off syncing in Firefox on both devices.
• Signing out of Firefox from both devices.
• Disabling "sync open tabs" via Firefox preferences
• Renaming devices from within Firefox Sync. (The name always reverts to the previous one.)
• Reinstalling Firefox
• Deleting cache from both Firefox and Chrome.
• Restarting

Images are from toolbar on iMac when Firefox is open on both computers. Any help would be most appreciated! Thanks!

The title pretty much sums it up. I even tried drastic measures such as logging out then completely uninstalling Firefox and removing any leftover data on both platforms. After reinstalling and connecting to the Firefox account they will sync with previous data but any new data I add on Windows won't show up on Android and vice versa. I also obviously tried forcing a sync manually... I really wish I didn't have to switch to another password manager any help would be greatly appreciated! :)

I recently switched to Firefox from Chrome. I imported all the bookmarks and passwords from Chrome into Firefox on Windows.

Next, I installed it on Linux and later on Android. The sync is not working properly that is what I noticed. Basically I have all the data on my Windows PC Firefox. It is not syncing between other devices, that will be my notebook running Linux and my Android Phone.

I read other similar question son the forum and did a Google search as well. I already did re-install a few times to no avail.

Here is the log from "about:sync-log" : https://paste.ee/p/5e57H

How do I fix this?

This morning when I turned on my PC, Mozilla didn't restore my previous session across 4 different browser windows. Normally, it restores my session (and the 4 windows) automatically. But this time, it didn't. I opened Mozilla, but the "restore previous session" option didn't generate the previously open windows.

I've lost hundreds of tabs that I had open... is there any way to restore my previous session?

Thanks in advance!

Reinstalled Firefox after a computer upgrade and now I'm stuck with a disconnected account and a sync loop. I login and it shows login confirmed but I look in the top right corner where you access your account and it shows that it's disconnected. On top of that, I backed up all of my tabs, favorites and passwords but I don't have the ability to import it from the back up. I'm only given the options to import from another browser. Any help in this matter is greatly appreciated.

Hi,

first of all thank you all in the community for your amazing work on Firefox!

I have cloned my $HOME (including ./.mozilla/firefox/) to another Linux device.

Now I realize that changing the Firefox Sync device name on the new device would also change it for the other device when checking "Connected Services" https://accounts.firefox.com/settings. I also can only see the new device name when using "Send to device" from any device.

I guess I have to unlink my new device and somehow assign it a new device ID for Firefox Sync to recognize the new device. How can I do that?

I have had several computers and a phone synced with Firefox. Recently, my mac book had to be wiped and OS reinstalled. Since then I have been unable to sync to my Firefox account on that laptop. I enter my standard email and the same password as on my desktop, but get an error stating, "Incorrect Password".

Following suggestion from an older thread with the same problem, I installed a nightly build on my desktop and tried to log in with that, unsuccessfully. Same problem. I used my same email and same password, but the nightly build version of Firefox reported the error, "Incorrect Password".

While thinking about this, I checked my newish phone and found it was not synced either. Using my email and password, I was unable to get it to sync. However, I was able to sync the phone using the QR code. So my phone is now synced to my Firefox account.

I really want to get the laptop to sync to my Firefox account and am mystified as to how to track down what the problem might be.

Hello. Last night i had to reinstall windows and i lost everything. but in firefox i have loged in and synced. its also synced with my safari browser on my phone. is it possible in any way to get my bookmarks and passwords back? because everything is gone and the profile folder only shows dates after i installed firefox again!

Best Regards Kaveh

I used Firefox's saved logins feature for years and had over 100 logins saved on my laptop. I also use Firefox on my IOS phone.

After an update (I don't know which one, updates are frequent), the app on my phone stopped showing my passwords for most of my accounts. For example, in the passwords section of my Firefox IOS app, it would show the names of the over 100 websites I had saved logins for, but would say there was nothing saved as an email/username or password, just empty boxes. There were 8 logins for accounts I had created on my phone, and those ones did display.

I eventually got tired this and tried to sync my account so I would have all of the passwords I saved on my laptop and on my phone, but Firefox, instead of combining the over 100 logins on my laptop with the 8 logins on my phone, removed all of the over 100 logins I had saved on my laptop and replaced them with the 8 logins that were saved on my phone. My phone also still has the 8 logins.

Now I am missing most of my logins, including the email accounts I used and passwords. This is a big issue for me because I've used multiple emails across my accounts. Resetting all of my passwords will be impossible, and I need to access the over 100 saved logins that are no longer on any of my devices.

I followed the instructions in the "Recover user data missing after Firefox update" support page. The only other profile that showed up for me has no logins saved at all, so that's a dead end. I read other pages about "wrong way syncing", but its too late for me to try to tell Firefox my laptop was the master account because the damage is already done.

I need to know if there's a way to recover my profile with all my accounts. Please, share any information that could be helpful. I need it badly.

Edit: grammar mistakes

After updating to Firefox 110 (snap running under Ubuntu Studio 22.04) I get "No synced logins found". The settings still show me logged in to my Firefox account and my synced bookmarks are still there. The saved logins are still there in my Firefox 110 installation running under Windows 10. A similar problem was reported here: Surface Pro 8 recently had No Synced Logins Found while other devices do not have this issue but I am opening a separate thread because the OP gives the impression that this is platform-specific. I am afraid to do anything in the Firefox installation under Ubuntu, for fear of overwriting (i.e. deleting) the saved logins which I can still access on my Windows installation. How should I proceed?

Hello Today, after installing the new Windows, I also installed the Firefox browser. But after I logged into my regular Firefox account, none of my previous account information, including plugins, bookmarks, and passwords, synced. I used this account for several years and all my information was stored in it. please guide me.

Hi Team

I have saved password in FF but unfortunately I have removed the saved password from one device .But it has removed from all my devices . Is there any chance to restore the data for me .

Hello:

I have 2 profiles in use. 1 for personal use with their respective bookmarks, passwords, and extensions, and I have no trouble syncing with this one. However; profile 2 that is for work use that has its respective bookmarks, passwords and extensions, has become a nightmare.

It happens that I have both profiles on the same computer and when trying to create an account in Firefox, the system asks me to enter the email registered in profile 1, with the warning that bookmarks, passwords and extensions will be mixed.

I mention that I have migrated from Google Chorme to Firefox for speed reasons and because I use windows 7 (I don't like later versions) Now well; in Google Chrome you could create as many sessions as were registered but in Firefox you can't.

Oh! I have been working fine with Firefox but suddenly an error occurs (it has happened to me 2 times in the last 2 months) in which the program closes and all the data of my profiles stored on the pc DISAPPEARS or is deleted (including cache), when I want to open them again:

firefox.exe -P

Then I have to give myself the task of synchronizing profile 1, but profile 2 I have to be importing from my previous Google account or importing a backup Bookmark.

The option to copy and paste the data from Firefox to replace it in the path (supposedly brings with it the data of everything):

C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\updates\308046B0AF4A39CB

with Firefox turned off it has not worked for me. Since when opening I see 2 profiles called Default "X" and Default "Z" without data.

This is a headache that if it happens to me, it happens to millions who have 2 or more profiles.

Why can't I sync a second profile? Why do you insist that there can only be one sync per device? Is there a solution for this?

Note: I have read all the tutorials out there and the situation remains the same. Synchronization with 2 or more profiles is never described.

Thank you very much to whoever asked this question!