HOW TO Find Safari extensions
1 See Apple’s selection
Safari Extensions live in the App Store on your Mac (and on your iPhone and iPad). The quickest way to find them is inside Safari: go to Safari > Safari Extensions and the App Store will open with this page of extensions.
2 See recommendations
Apple’s recommendations cover all kinds of extensions. They’re grouped into categories such as Browse Better, Read With Ease, etc, and they install in the same way as any other app.
3 See what’s installed
All your installed extensions will be visible in Safari > Preferences > Extensions, and you can turn them on or off by selecting or deselecting their checkbox. You can also uninstall any extensions you no longer want to use.