Fix Safari "Page Not Responding"

Safari on macOS Tahoe can sometimes "freeze" even on simple sites, showing the spinning beachball of death.

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The Symptom

A website loads partially, then becomes unresponsive. You might see a "This webpage is using significant memory" warning.

The Fix

1. Clear the Website Cache

Go to Safari > Settings > Privacy > Manage Website Data... and click "Remove All."

1. Disable Experimental Features

Tahoe often ships with experimental features enabled.

Go to Safari > Settings > Advanced.

Check "Show features for web developers."

In the new Develop menu, go to Feature Flags and click "Reset All to Defaults."

1. Purge the Safari Cache via Terminal

Quit Safari and run:

rm -rf ~/Library/Caches/com.apple.Safari
rm -rf ~/Library/Safari/LocalStorage/*.localstorage

Pro Tip

If only one specific site is crashing, try opening it in a Private Window (Cmd+Shift+N). If it works there, an extension is likely the culprit.