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From the Safari Menu Bar, click Safari / Empty Cache. When you are done with that...
From the Safari Menu Bar, click Safari / Reset Safari. Select the top 5 buttons and click Reset.
Make sure Safari is not running in Rosetta. Right or control click the Safari icon in your Applications folder then click Get Info. In the Get Info window click the black disclosure triangle so it faces down. *Where you see Open using Rosetta... make sure that is NOT selected.*
Go here for trouble shooting 3rd party plugins or input managers which might be causing the problem.
Safari: Add-ons may cause Safari to unexpectedly quit or have performance issues
Web pages now include a small icon or 'favicon' which is visible in the address bar and next to bookmarks. These icons take up disk space and slow Safari down. It is possible to erase the icons from your computer and start fresh. *To delete Safari's icon cache using the Finder, open your user folder, navigate to ~/Library/Safari/ and move this file "webpageIcons.db to the Trash.*
If nothing above helps, go to the Safari Menu Bar, click Safari/Preferences. Make note of all the preferences under each tab. Quit Safari. Now go to ~/Library/Preferences and move this file
com.apple.safari.plist to the Desktop. Relaunch Safari. If it's a successful launch, then that .plist file needs to be moved to the Trash.
Carolyn 🙂
