Extensions add features to other apps. Safari extensions add tools to the browser, and system extensions add features to macOS. After you remove an app, check for its extensions and turn off any you no longer need. Removing an extension does not remove the app that installed it.
Quick steps
- Open System Settings, then General, then Login Items & Extensions.
- Turn off the system extensions that belong to the removed app.
- Open Safari, then Settings, then Extensions.
- Turn off or remove the browser extensions that belong to the app.
Step 1: Check system extensions
- Open System Settings.
- Click General, then Login Items & Extensions.
- Look for the app’s name in the extensions list.
- Turn it off.
One-time purchase. Works on macOS 15 or later, on Apple silicon and Intel Macs.
Step 2: Check Safari extensions
- Open Safari.
- Choose Safari from the menu bar, then Settings.
- Click Extensions.
- Turn off or remove the ones that belong to the app.
What to leave alone
Warning: Only change extensions you recognize. Turning off a security or password extension can leave your Mac or accounts less protected.
Keep extensions from software you still use, even if they look unfamiliar.
Frequently asked questions
Does removing an extension remove the app?
No. It only stops the extension from working. Move the app to the Trash to remove the app itself.
What if I do not see the extension?
Some apps do not install any extensions. You can skip this step.
Are extensions the same as login items?
No. Login items open an app when you log in. Extensions add features to an app or to macOS.
Want one simple step instead?
Uninstallzy shows every app with its size. Pick the app, confirm once, and it goes to the Trash.
One-time purchase. Works on macOS 15 or later, on Apple silicon and Intel Macs.