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How can I migrate my old sync data to the new system when I don't have any devices signed in

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I just reformatted my computer harddrive and reinstalled both Windows and Linux. Now that I have everything installed and updated, Firefox is asking me to migrate to the new syncing system they have. Problem is, I want to still be able to sign into the old system just to be able to get my bookmarks so I can migrate them to the new system.

I still have my sync key, and login information for the old system, but I just want to know how to access it once to get my information. I can handle everything from there.

I just reformatted my computer harddrive and reinstalled both Windows and Linux. Now that I have everything installed and updated, Firefox is asking me to migrate to the new syncing system they have. Problem is, I want to still be able to sign into the old system just to be able to get my bookmarks so I can migrate them to the new system. I still have my sync key, and login information for the old system, but I just want to know how to access it once to get my information. I can handle everything from there.

Chosen solution

hello, in this case you'd probably have to use a workaround and download the prior firefox version, disable automatic updating for the moment (in options > advanced > update), link it to the old sync account and upgrade after you have successfully restored your data this way...

Install an older version of Firefox

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hello, in this case you'd probably have to use a workaround and download the prior firefox version, disable automatic updating for the moment (in options > advanced > update), link it to the old sync account and upgrade after you have successfully restored your data this way...

Install an older version of Firefox

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That's what I was afraid of. Ah well, spent the time to get it done, and I should be up and running within a few minutes! Thanks for the help!