Reset Safari on macOS without opening

• To check whether the macOS is running on the latest version or not.
• You need to click on the Apple icon from the top left corner and then click on the App Store.

• After that, click on Updates to check for any new updates available for your macOS.

Step 1: Close all Open Applications to Reset Safari

• Firstly, navigate to Apple Icon from the Top Left Corner and then click on Force Quit.
• After that, Force Quit all the open applications except Finder.

Step 2: Backup Safari Bookmarks

• Secondly, navigate to Go and Select Go to folder Type: ~/Library. Then Hit Enter
• After that, open the folder named Safari.
• Then you will be able to find a file named Bookmarks.plist, this file contains the backup of all your bookmarks.
• However, you can either back up this file to online storage or copy it to a flash drive.

Step 3: Open ~/Library

• Thirdly, click Go select Go to the folder then Type: ~/Library and Hit Enter
• Look for Cookies, Cache, and Safari. Select them all and Move to Trash.
• Navigate to Folder Saved Application State.
• Search for com.apple.Safari.savedState and Move to Trash.
• After that, close all the open windows.

Step 4: Open Terminal

• Besides, to all the above three steps we need to use the command line to make sure that our Safari is reset properly.
• Therefore, we will go ahead and open Terminal to reset Safari on macOS.
• After that, copy all the commands given below and paste them together at once in Terminal.

 mv ~/Library/Safari ~/Desktop/Safari-`date +%Y%m%d%H%M%S`; \
 rm -Rf ~/Library/Caches/Apple\ -\ Safari\ -\ Safari\ Extensions\ Gallery; \
 rm -Rf ~/Library/Caches/Metadata/Safari; \
 rm -Rf ~/Library/Caches/com.apple.Safari; \
 rm -Rf ~/Library/Caches/com.apple.WebKit.PluginProcess; \
 rm -Rf ~/Library/Cookies/Cookies.binarycookies; \
 rm -Rf ~/Library/Preferences/Apple\ -\ Safari\ -\ Safari\ Extensions\ Gallery; \
 rm -Rf ~/Library/Preferences/com.apple.Safari.LSSharedFileList.plist; \
 rm -Rf ~/Library/Preferences/com.apple.Safari.RSS.plist; \
 rm -Rf ~/Library/Preferences/com.apple.Safari.plist; \
 rm -Rf ~/Library/Preferences/com.apple.WebFoundation.plist; \
 rm -Rf ~/Library/Preferences/com.apple.WebKit.PluginHost.plist; \
 rm -Rf ~/Library/Preferences/com.apple.WebKit.PluginProcess.plist; \
 rm -Rf ~/Library/PubSub/Database; \
 rm -Rf ~/Library/Saved\ Application\ State/com.apple.Safari.savedState

In conclusion, these commands will fully wipe out all of your old Safari settings and make your Safari as on factory default settings.
Therefore, you need to restart your macOS and Open Safari again.
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