How to Remove a Browser Extension from Safari (macOS) BTech BTech Alerts & Notifications - Check this page for the latest information on emergencies and system outages. All times are Pacific. Browser Support Guides: Browsers Safari Overview Removing browser extensions helps improve performance, enhance security, protect privacy, prevent compatibility issues, and reduce browser clutter. Steps to Perform Open Safari. Click Safari in the menu bar. Click Preferences. Click Extensions. Find the extension you want to remove. Click the extension name on the left. Click the Uninstall button.