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Question: How to reset Safari 12.0 defaults?

MacBook Pro retina 11", OS X 10.13.6, Safari 12.0.


Safari behaving strangely after visiting one or more web sites. How to reset Safari to defaults? (May have inadvertently changed settings in preferences.). Please advise.


Would FINDER or other system settings need also to be reset, judging from the scant information thus far provided?


Thank you.

MacBook Pro (Retina, 13-inch,Early 2015), OS X El Capitan (10.11.3)

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Oct 4, 2018 7:19 AM in response to JMar499 In response to JMar499

You shouldn't have to adjust Finder.


Safari/Preferences/Advanced - enable the Develop menu, then go there and Empty Caches. Quit/reopen Safari and test. Then try Safari/History/Show History and delete all history items. Quit/reopen Safari and test. You can also try try Safari/Clear History…. The down side is it clears all cookies. Doing this may cause some sites to no longer recognize your computer as one that has visited the web site. Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Library/Caches/com.apple.Safari/Cache.db and move it to the trash.


Go to Safari Preferences/Extensions and turn all extensions off. Test. If okay, turn the extensions on one by one until you figure out what extension is causing the problem.


Do a backup, preferably 2 backups on 2 separate drives.


Quit the application.


Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Library. Then go to Preferences/com.apple.Safari.plist. Move the .plist to your desktop.


Restart the computer, open the application, and test. If it works okay, delete the plist from the desktop.


If the application is the same, return the .plist to where you got it from, overwriting the newer one.


This may require a reset of some other Preferences.


Thanks to leonie for some information contained in this.

Oct 4, 2018 7:19 AM

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Question: How to reset Safari 12.0 defaults?