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passwords and bookmarks lost

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Hi, I've just update Firefox, I found "old firefox datas" as a file. but passwords and bookmarks are lost. I've tried to find If the previous profile was registered, but there is none. Can you help? Thanks

Hi, I've just update Firefox, I found "old firefox datas" as a file. but passwords and bookmarks are lost. I've tried to find If the previous profile was registered, but there is none. Can you help? Thanks

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Could you take me through it a little slower:

You updated Firefox, and it asked whether you would like to Refresh/Tune-up your profile, and you said yes? And then your data did not migrate fully?

Or you updated Firefox, started it, and everything was back to factory settings, without any of your data, for no apparent reason?

Or... something else happened?

If you did a Refresh today:

Probably the data in Old Firefox Data is fresh. What have you tried so far?