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Missing sync data

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  • Last reply by ghjtzuyxc

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Dear Support,

Since ages ago I've always logged into Firefox and turned on sync so whichever device I was on (or if I have formatted my PC) I would still have acces to my browser history, tabs etc. Today I've formatted my PC to switch from win 10 to win 11 and logged into firefox as usual, but after trying to Sync nothing happens. My tabs, my history, everything is empty for some reason and I cannot find my original device (the one from a few hours ago connected in win 10) in my connected devices list either.

Please help me, my whole life is in that sync :(

Best Regards, Peter

Dear Support, Since ages ago I've always logged into Firefox and turned on sync so whichever device I was on (or if I have formatted my PC) I would still have acces to my browser history, tabs etc. Today I've formatted my PC to switch from win 10 to win 11 and logged into firefox as usual, but after trying to Sync nothing happens. My tabs, my history, everything is empty for some reason and I cannot find my original device (the one from a few hours ago connected in win 10) in my connected devices list either. Please help me, my whole life is in that sync :( Best Regards, Peter

All Replies (3)

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Dear Peter!

Do you have any other devices? If not, you might be out of luck, as Sync is not backup, it allows you to synchronize your data among your logged-in devices, but it is not meant to reliably store the data. Unfortunately this is a pretty common mistake people make.

Regards, Balázs

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I have one from a long time ago, but even that I cannot see in the connected devices list. Should I try to power that on and see if I can sync? For quite some time I was only using this one device, but last time I've done a full format (around 2 years ago) the sync gave me back all my data without any issues. I don't understand why is it gone now. Should I tell you the previous device name? Would that help? Why can I not see the data from the previous format and sync from 2 years ago or the one around 6-7 years ago (where my other device was in sync as well)?

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Dear Balázs,

I've managed to find my device from several years ago and it already has a lot of my bookmarks that I was using still to this day. How can I sync those bookmarks into my freshly formatted device? I've logged in on that old device and has turned on sync, tried to "send the pages" to this device, I've tried to sync again, but still no bookmarks. How can I restore those bookmarks here?

Regards, Peter

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