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Migration to Wife's new Apple iMac, her bookmarks have been replaced by mine

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I used Apple Migration Assistant to move the entirety of my wife's old iMac (the old computer won't accept updates, so her machine was not secure) to a new one. The migration operation appeared smooth and essentially perfect.

Somehow my Bookmarks have overwritten my wife's (years ago, I turned Synch = ON, was that it? Synch is OFF now). The bookmarks are still OK on the old computer, so how do I locate and move that info to the new machine "AND BE SURE TO GET IT RIGHT"? My wife is the family business manager, so her bookmarks are Insurance, Banking, Healthcare, etc.

I've done some searching, but there are thousands of posts, I can't wade through all of that.

...

I used Apple Migration Assistant to move the entirety of my wife's old iMac (the old computer won't accept updates, so her machine was not secure) to a new one. The migration operation appeared smooth and essentially perfect. Somehow my Bookmarks have overwritten my wife's (years ago, I turned Synch = ON, was that it? Synch is OFF now). The bookmarks are still OK on the old computer, so how do I locate and move that info to the new machine "AND BE SURE TO GET IT RIGHT"? My wife is the family business manager, so her bookmarks are Insurance, Banking, Healthcare, etc. I've done some searching, but there are thousands of posts, I can't wade through all of that. ...

Modified by James

Chosen solution

Hi Pete, is the old Mac still working to the point that you can run Firefox on it? Assuming so, generate a fresh backup file that you can restore on the new system. Here's what I have in mind:

(1) Old Mac: create a backup file (.json file)

This article has the steps in the Manual Backup section: Restore bookmarks from backup or move them to another computer

(2) Transfer the backup file to the new Mac

(3) New Mac: disconnect from your Firefox Account.

It's okay for your wife to use Sync, but not using your account or you'll have a mess again soon.

(4) New Mac: restore the .json file

That same article has the steps: Restore bookmarks from backup or move them to another computer

Success?

Any issue with saved logins or other data?

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Hi Pete, is the old Mac still working to the point that you can run Firefox on it? Assuming so, generate a fresh backup file that you can restore on the new system. Here's what I have in mind:

(1) Old Mac: create a backup file (.json file)

This article has the steps in the Manual Backup section: Restore bookmarks from backup or move them to another computer

(2) Transfer the backup file to the new Mac

(3) New Mac: disconnect from your Firefox Account.

It's okay for your wife to use Sync, but not using your account or you'll have a mess again soon.

(4) New Mac: restore the .json file

That same article has the steps: Restore bookmarks from backup or move them to another computer

Success?

Any issue with saved logins or other data?