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I lost all my data in my firefox account

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after i changed my ubuntu linux to kali linux and i logged in firefox-esr. all data is completely gone.. i tried many options, i checked profiles and also as mentioned i changed from ubuntu to kali so there is no Directory contains those gone data. i think it has no solution from my side, so if my data are stored in your servers maybe this solve the issue. i hope you can help me, it's IMPORTANT data for me, i collected it for more than year.

after i changed my ubuntu linux to kali linux and i logged in firefox-esr. all data is completely gone.. i tried many options, i checked profiles and also as mentioned i changed from ubuntu to kali so there is no Directory contains those gone data. i think it has no solution from my side, so if my data are stored in your servers maybe this solve the issue. i hope you can help me, it's IMPORTANT data for me, i collected it for more than year.
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  • User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0

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the-edmeister
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5420 solutions 40432 answers

"...so if my data are stored in your servers maybe this solve the issue..."

Do you have a Firefox Account? And was that device setup for the optional Sync service?

That is the only way that Mozilla might have your data on a "server".

https://support.mozilla.org/en-US/kb/im-having-problems-with-my-firefox-account https://support.mozilla.org/en-US/kb/how-do-i-set-sync-my-computer

'''"...so if my data are stored in your servers maybe this solve the issue..."''' Do you have a Firefox Account? And was that device setup for the optional Sync service? That is the only way that Mozilla might have your data on a "server". https://support.mozilla.org/en-US/kb/im-having-problems-with-my-firefox-account https://support.mozilla.org/en-US/kb/how-do-i-set-sync-my-computer
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Question owner

Yes i have an account and my sync was working, i think. how could i restore my Data now?

Yes i have an account and my sync was working, i think. how could i restore my Data now?
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Dinushi Dhananjani
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5 solutions 216 answers

On the desktop you should see a

folder called 'Old Firefox Data' 

open it and copy all the data by

highlighting and selecting everything
in that folder, then right click and select copy

Now open FIrefox.

Head on over to about:profiles by typing it in your URL bar

Recover user data

https://support.mozilla.org/en-US/kb/recover-user-data-missing-after-firefox-update

On the desktop you should see a folder called 'Old Firefox Data' open it and copy all the data by highlighting and selecting everything in that folder, then right click and select copy Now open FIrefox. Head on over to about:profiles by typing it in your URL bar Recover user data https://support.mozilla.org/en-US/kb/recover-user-data-missing-after-firefox-update
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Question owner

i did this also, found 3 profiles, tried them, but none of them contains my data, they all contains the default extensions/bookmarks for firefox-esr. .

i did this also, found 3 profiles, tried them, but none of them contains my data, they all contains the default extensions/bookmarks for firefox-esr. .
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the-edmeister
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5420 solutions 40432 answers

When you went to Connect to Sync on that new kali linux OS did you have any problem logging into Sync?

Did you Change the Password for your Firefox Account?

When you went to Connect to Sync on that new '''kali linux''' OS did you have any problem logging into Sync? Did you '''Change''' the Password for your Firefox Account?
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Question owner

No i didn't have any problems, just logged in as usual and everything was going well, but no data. Yes i changed it before login in the new kali.

No i didn't have any problems, just logged in as usual and everything was going well, but no data. Yes i changed it before login in the new kali.
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the-edmeister
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5420 solutions 40432 answers

shootHard1337 said

No i didn't have any problems, just logged in as usual and everything was going well, but no data. Yes i changed it before login in the new kali.

Sorry, that was a fatal mistake. The Firefox Account (FxA) password is used to create the "encryption key" that Sync uses; change the FxA password and the data saved on the Sync server is rendered useless; and that data is deleted from the Sync server to allow for a "fresh start"

''shootHard1337 [[#answer-1269985|said]]'' <blockquote> No i didn't have any problems, just logged in as usual and everything was going well, but no data. '''Yes i changed it before login in the new kali'''. </blockquote> Sorry, that was a fatal mistake. The Firefox Account (FxA) password is used to create the "encryption key" that Sync uses; change the FxA password and the data saved on the Sync server is rendered useless; and that data is deleted from the Sync server to allow for a "fresh start"
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Question owner

what? that means i couldn't restore my data ?!!

what? that means i couldn't restore my data ?!!
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the-edmeister
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5420 solutions 40432 answers

When the Firefox Account password is changed all the data sitting on the Sync server is deleted - it's gone.

There is a warning message to tell the user the "resetting the password will erase your data from our servers".

(see screenshot which is from an ancient version of Firefox / Sync that I saved years ago - the warning now is very similar)

When the Firefox Account password is changed all the data sitting on the Sync server is deleted - it's gone. There is a warning message to tell the user the "resetting the password will erase your data from our servers". ''(see screenshot which is from an ancient version of Firefox / Sync that I saved years ago - the warning now is very similar)''
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James
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1603 solutions 11348 answers

Note the Firefox Sync was never meant as a backup for your settings.

If only you backed up your Firefox Profile(s) before installing kali linux

https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

Note the Firefox Sync was never meant as a backup for your settings. If only you backed up your Firefox Profile(s) before installing kali linux https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
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