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How can I login to the old sync to restore prior bookmarks?

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Hello. I have a separate account (email) for the new sync running the current Firefox 39. Some of my old bookmarks did not get restored when I upgraded, and I wish to get them from the old sync account. Any help would be very much appreciated!

I have tried renaming my profile and reinstalling Firefox 27.0, but Firefox still automatically syncs to the New sync. (Too clever for me). What is the best version of Firefox to use to get to the old sync, and is there special folder I need to delete/rename? (Please note that this endeavor is all following a HD crash and MS OneDrive losing my offsite back-ups, so I have **no prior local files** available for the Firefox import and backup, restore, history). So looking strictly to access my old sync account/profile. Thank you for any thoghts you can share!

Hello. I have a separate account (email) for the new sync running the current Firefox 39. Some of my old bookmarks did not get restored when I upgraded, and I wish to get them from the old sync account. Any help would be very much appreciated! I have tried renaming my profile and reinstalling Firefox 27.0, but Firefox still automatically syncs to the New sync. (Too clever for me). What is the best version of Firefox to use to get to the old sync, and is there special folder I need to delete/rename? (Please note that this endeavor is all following a HD crash and MS OneDrive losing my offsite back-ups, so I have **no prior local files** available for the Firefox import and backup, restore, history). So looking strictly to access my old sync account/profile. Thank you for any thoghts you can share!

All Replies (2)

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hello, firefox 29 and above use a new sync login system which isn't compatible with the old username/password/sync-key method anymore. you could unlink your current "new" sync account from your profile from the firefox options > sync section and then try this "hack" to get a new firefox version to connect to an old sync account though:

enter about:config into the firefox address bar (confirm the info message in case it shows up), right-click somewhere in that page & create a new string preference named services.sync.username with a value like fake. afterwards you should be able to connect to the old account through the firefox options > sync panel. click on set up firefox sync > i have an account > i don't have the device with me where you can enter your existing credentials.

if this worked and you could import your data successfully, please migrate to the new sync afterwards: Sync your Firefox bookmarks, history, passwords and more

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Please continue in your original questions thread - over here: https://support.mozilla.org/en-US/questions/1071145

philipp response copied over there.


locking this thread as a duplicate

Modified by the-edmeister