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Undo sync

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Help! I was trying out sync, and I thought that clicking "sync" would bring up a menu or dialog box of some type, but it just went ahead and synced the data from the wrong computer. I lost years of bookmarks for work. How can I undo the sync and get all my bookmarks back? I saw another thread where a user had been able to do this by disconnecting the computer from sync. I tried this, but the bookmarks are still missing.

Help! I was trying out sync, and I thought that clicking "sync" would bring up a menu or dialog box of some type, but it just went ahead and synced the data from the wrong computer. I lost years of bookmarks for work. How can I undo the sync and get all my bookmarks back? I saw another thread where a user had been able to do this by disconnecting the computer from sync. I tried this, but the bookmarks are still missing.

Isisombululo esikhethiwe

Firefox automatically saves bookmark backups. Restore a backup from prior to when you set up Sync.
https://support.mozilla.org/en-US/kb/restore-bookmarks-from-backup-or-move-them#w_restoring-from-backups

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Isisombululo Esikhethiwe

Firefox automatically saves bookmark backups. Restore a backup from prior to when you set up Sync.
https://support.mozilla.org/en-US/kb/restore-bookmarks-from-backup-or-move-them#w_restoring-from-backups

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Well, there was only one backup of the bookmarks, but fortunately, it was before the erroneous sync. Thanks for your help!