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ALL my Firefox synced data is lost

  • 13 ответов
  • 1 имеет эту проблему
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  • Последний ответ от Ram Mozi

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I am IT techie, and I need FF help on this. I searched the entire sync issue forum, but of no avail.

I had a Windows 10 update issue so I decided to format my PC. My sync was enabled and all data was synced normally. I went ahead and formatted it, and installed a new copy of Win 10, and all softwares, including FF. Now after syncing for over an hour, I cannot find anything. No history, no bookmarks, no logins, nothing.

This is definitely something to do with your update. I cannot figure anything else out. How can I get my old data back? This is absolutely ridiculous and frustrating.

I have 2 other laptops with FF synced, but they aren't booting up either because of hardware failures. I cannot risk turning them back on, and loosing my FF data from those laptops.

Please advise, how to access my cloud data on FF, or should I switch over to Google chrome because of your incompetency?

Все ответы (13)

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Firefox Sync is NOT A BACKUP SERVICE. It was not designed to be one, nor does it function like one. There's not necessarily a permanent or complete copy of your data on the Firefox Sync server.

Additionally, some account actions (like changing password) cause the Firefox Sync data to be erased.

If the data does not come back when you log into Firefox Sync, try disconnecting and connecting to sync again.

If it still doesn't come back, it's likely that the data is not actually stored on the sync server anymore.

In that case, you will need to recover the data from another device that has the same data.

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I never mentioned anything about a "backup service", nor did I assume one. But if sync doesn't function, like it is supposed to, then what is the point of even using mozilla? There are better browsers with backup services.

This wasn't expected of Mozilla. Never in my history of using mozilla has this error ever occurred. There is no data. I've already re-installed mozilla twice, disconnected and reconnected it. Luckily I have a backup on my laptop, only thing is I have to manually restore it.

The best backup is brains, I visually remember all my bookmarks, but it is frustrating to say the least. Imagine what other non-It users will go through, if they come across this glitch. You will loose major customer base. Including me

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Firefox Sync is designed to reflect changes to settings, bookmarks, history, etc to other devices that are using Firefox. It's not designed to rebuild all of your information if you erase it from your computer.

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Did you or did you not reset your Firefox Account password when attempting to log into Sync after that re-format?

If your data is lost, I am sorry about that. And the latest "update" to Sync servers that could cause that was with Australis Firefox 29 when a new batch of "sync" 2.0 severs was enabled for a massive change to Sync login procedures. Later versions of Firefox all have worked well, so your issue isn't connected (IMO) to a Firefox update, period.

And yes, I have suffered the same loss of my data with Sync 2.0 - but I was prepared when transitioning to a newly built PC thru Sync; I had backed up my Firefox Profile to USB Flash Drive before using Sync. Once I realized what I had done, I plugged in the USB Flash stick to recover that data, saving me a trip into my workshop to the older, about-to-be retired PC to then copy my Firefox data.

The original password holds the "encryption key" for your data! When the password is changed the data which is held on the Sync server becomes worthless; even the IBM Watson supercomputer would be hard pressed to recover your data, and if it could the end cost would be phenomenal.


BTW, I am not an IT techie. I am a 70 yo computer user with skills gained over the years dating back to 1984 with an IBM-XT PC for my business and used that old XT PC (using command code to launch the software each day) until 1993, when my Shop Keeper software was being retired for an all new version for use with the first Pentium P-5 grade chips. $15,000 plus upgrade in those days for vertical market software packages, on top of the new computers which also had vastly improved networking between PC's sharing data.

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the-edmeister said

Did you or did you not reset your Firefox Account password when attempting to log into Sync after that re-format? If your data is lost, I am sorry about that. And the latest "update" to Sync servers that could cause that was with Australis Firefox 29 when a new batch of "sync" 2.0 severs was enabled for a massive change to Sync login procedures. Later versions of Firefox all have worked well, so your issue isn't connected (IMO) to a Firefox update, period. And yes, I have suffered the same loss of my data with Sync 2.0 - but I was prepared when transitioning to a newly built PC thru Sync; I had backed up my Firefox Profile to USB Flash Drive before using Sync. Once I realized what I had done, I plugged in the USB Flash stick to recover that data, saving me a trip into my workshop to the older, about-to-be retired PC to then copy my Firefox data. The original password holds the "encryption key" for your data! When the password is changed the data which is held on the Sync server becomes worthless; even the IBM Watson supercomputer would be hard pressed to recover your data, and if it could the end cost would be phenomenal. BTW, I am not an IT techie. I am a 70 yo computer user with skills gained over the years dating back to 1984 with an IBM-XT PC for my business and used that old XT PC (using command code to launch the software each day) until 1993, when my Shop Keeper software was being retired for an all new version for use with the first Pentium P-5 grade chips. $15,000 plus upgrade in those days for vertical market software packages, on top of the new computers which also had vastly improved networking between PC's sharing data.

It's always a pleasure to learn from elders, because they always have skills that are wonderful. I have a complex password for my FF sync, and I have always been an advocate of 2FA. But in this case, let me assure you neither did I change the password, nor did I use 2FA from FF.

I had installed LastPass password storage manager a couple of months back, and everything seemed to work fine, I have even formatted my PC 2 months back, and restored FF, it was perfect. If you suggest that it has nothing to do with the update, perhaps I might beg to differ, because there is no other issue that I could have had.

It seems the only option for me is to restart my old laptop, and bring up FF, and export all my bookmarks, and logins. This should be a case study for Mozilla, as to what could have happened. I am open to more questions.

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the-edmeister said

The original password holds the "encryption key" for your data! When the password is changed the data which is held on the Sync server becomes worthless; even the IBM Watson supercomputer would be hard pressed to recover your data, and if it could the end cost would be phenomenal. BTW, I am not an IT techie. I am a 70 yo computer user with skills gained over the years dating back to 1984 with an IBM-XT PC for my business and used that old XT PC (using command code to launch the software each day) until 1993, when my Shop Keeper software was being retired for an all new version for use with the first Pentium P-5 grade chips. $15,000 plus upgrade in those days for vertical market software packages, on top of the new computers which also had vastly improved networking between PC's sharing data.

I have a fair idea about encryption, and the robustability. My first ever PC was a ZX sinclair, then an Amiga 500, and so on. I should have taken up software programming, as I was good in coding games.

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Ok so here is the scenario - I have successfully powered up my laptop with old FF data, and it is working fine. All bookmarks are there, but when I sync them, the changes are not reflected in my PC. I know how to backup, export etc, but if the sync isn't functioning this is a glitch in FF. Can someone explain?

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Wesley Branton said

Firefox Sync is designed to reflect changes to settings, bookmarks, history, etc to other devices that are using Firefox. It's not designed to rebuild all of your information if you erase it from your computer.

I understand, but it doesn't explain the question I just posted above.

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I think the Sync service might be kaput for some folk. Pop about:sync-log in the address bar - do you have lots of "error-sync-*****" files?

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mikehealy74 said

I think the Sync service might be kaput for some folk. Pop about:sync-log in the address bar - do you have lots of "error-sync-*****" files?

Dear Mike,

It is full of errors. This is the first time I have used this command, thank you so much for pointing it out. I guess the problem is with Mozilla. Any clue if Mozilla is aware of this, or sorting it out? I've formatted my PC twice now, thinking there might be a malware issue, but this isn't the case.

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For some reason, I logged in today, and everything was synced.

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That's great news!

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