Safari is the default web browser for the iPhone, iPad, and macOS. Safari is fast and powerful, able to serve up even the most advanced and interactive websites out there. Safari plugins add even more functionality, letting users personalize their browsing experience.
The information in this article applies to Safari 9 and earlier. As of version 10, Safari no longer supports most web plugins. Safari is optimized for content that uses the HTML5 web standard, which doesn't require a plugin. To enhance and customize your browsing experience, Apple recommends you use Safari extensions instead of web plugins.Rawpixel
How to Find Your Installed Safari Plugins
Here's how to see what plugins you've installed on your Safari browser.
From the Help menu, select Installed Plugins.
Safari will display a new web page that lists all of the Safari plugins currently on your system.
Safari groups plugins by the file that contains the small programs. You may see various Java Applet plugins or a QuickTime plugin.
How to Remove or Turn Off Plugins
Plugins come with downsides. Poorly written ones can slow down Safari's web rendering performance. They can also compete and cause stability issues or replace a program's built-in functionality with less desirable methods that don't work as well.
Here's how to turn off plugins.
Launch Safari, and then select Safari > Preferences.
Select the Security button.
To turn off all plugins, remove the checkmark from the Allow Plugins box.
To manage plugins by website, select the button labeled Plugin Settings or Manage Website Settings, depending on the Safari version you're using. Remove the checkmark next to a plugin to disable it.
Use the dropdown menu next to the website name to change the plugin usage setting.
How to Delete a Plugin From Your Computer
To completely delete a plugin from your computer, remove its file from your hard drive.
Safari stores its plugin files in /Library/Internet Plug-Ins/.
To remove a plugin, drag the file to the Trash. Drag the file to another location on your Mac to disable it but save it for later. Create a folder called Disabled Plugins to hold these files. If you change your mind later and want to reinstall the plugin, drag it back to its original location.
After you remove a plugin by moving it to the Trash or another folder, restart Safari for the change to take effect.