What to Know
you could easily restore missing bookmarks using the AppleiCloudservice or Time Machine.
Be sure to select Safari as one of the items to sync via iCloud.
Restart Safari and/or your gadget and see if the bookmarks reappear.

If they don’t, continue on.
Go toicloud.comand enter with your credentials.
kick off the drop-down menu next to your name in the top-right corner and chooseAccount options.

Scroll to theAdvancedsection and selectRestore Bookmarks.
Choose the bookmarks you want to restore, then selectDone.
Restart Safari if needed, then check to see if your bookmarks are back.
How to Restore Safari Bookmarks with Time Machine
Another common method of restoring Safaris bookmarks utilizesTime Machine.
you’ve got the option to use those backups to restore your missing Safari bookmarks and more.
Connect your Time Machine backup drive to your Mac and turn it on.
Then turn on your Mac.
OpenUtilities>Applications>Migration Assistant.
choose the option to transfer from aMac, Time Machine backup, or startup disk.
Select your Time Machine backup, then pressContinue.
choose the files you want to transfer, then hitContinueto begin the process.
Once the transfer finishes, reset your rig and sign in.
The transfer process could take several hours to finish depending on the amount of information you’re restoring.
Why Did Your Bookmarks Disappear?
Preference files store rules that tell your apps how they should work.
Problems with .plist files are one of theMac’sAchilles' heels.
They seem to be a weak point in how applications are structured.
Thankfully, they’re easily replaced, causing at most a bit of inconvenience.