iMac migration: Will old Safari data overwrite new?

I am migrating from iMac (2018, OS Sierra) to new iMac and OS. I ran bitdefender and got 4 Safari problems. When I run the migration will the old Safari overwrite new?

iMac 27″ 5K, macOS 10.13

Posted on Sep 27, 2026 12:44 PM

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Question marked as Top-ranking reply

Posted on Oct 1, 2026 12:29 PM

Can you be more specific?


In general, migrating to a new Mac using Migration Assistant will transfer all transferrable Safari data including browsing history, bookmarks, stored passwords... etc.


For reference: Transfer to a new Mac with Migration Assistant - Apple Support. It explains MA in greater detail.


You will definitely want to remove Bitdefender prior to running Migration Assistant. Double and triple-check its thorough, complete, and irrevocable removal. Getting someone else to confirm it would be ideal. If you need help with that please write back. I understand the comment "rule 1 of Macs is don't install junk" may appear to be flippant but it is anything but. It's serious. It's the first step in a well-worn path to misery.

3 replies
Question marked as Top-ranking reply

Oct 1, 2026 12:29 PM in response to 1horseygal

Can you be more specific?


In general, migrating to a new Mac using Migration Assistant will transfer all transferrable Safari data including browsing history, bookmarks, stored passwords... etc.


For reference: Transfer to a new Mac with Migration Assistant - Apple Support. It explains MA in greater detail.


You will definitely want to remove Bitdefender prior to running Migration Assistant. Double and triple-check its thorough, complete, and irrevocable removal. Getting someone else to confirm it would be ideal. If you need help with that please write back. I understand the comment "rule 1 of Macs is don't install junk" may appear to be flippant but it is anything but. It's serious. It's the first step in a well-worn path to misery.

iMac migration: Will old Safari data overwrite new?

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