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I activated Firefox Sync and it didn't sync anything.

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I hade to make a sudden System restoration on Win 10 (by keeping the file), when i installed Firefox again i had a problem with Sync password, so i changed it to a new one, and when i finally activate Sync, it didn't sync anything !

Whan can i do ? There is a way to get my data back ?

I hade to make a sudden System restoration on Win 10 (by keeping the file), when i installed Firefox again i had a problem with Sync password, so i changed it to a new one, and when i finally activate Sync, it didn't sync anything ! Whan can i do ? There is a way to get my data back ?

Chosen solution

i had a problem with Sync password, so i changed it to a new one,

That deletes the data on the Sync server. See the screenshot.

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Chosen Solution

i had a problem with Sync password, so i changed it to a new one,

That deletes the data on the Sync server. See the screenshot.

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Thanks. That makes Sync a totally unreliable component. I will begin to use a better one.

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Sync wasn't intended to be used as a backup medium, it's made to synchronize Firefox user data across multiple devices. If you had your data on another device, that data would have been restored to the Sync server after the Password Reset. And then you could have connected the device that got the system restoration.