Safari extensions are software programs you can install to customize the way your browser works. For example, extensions can show news headlines in a bar below the toolbar, change the appearance of web content, or add buttons to the Safari toolbar.
In order to provide these features, extensions may access the content of the webpages you visit. It’s good practice to check which extensions you have installed and make sure you are familiar with what they do.
Choose Safari > Preferences, click Extensions, then do any of the following:
Turn all extensions on or off: Click the On/Off switch.
Turn an extension on or off: Select the extension, then select the “Enable [extension name]” checkbox.
Download and install extensions: Click Get Extensions, then follow the onscreen instructions.
Download and install extensions only from trusted sources. Safari extension filenames end with “.safariextz”.
See available updates: Click Updates, then deselect Install Updates Automatically. A list of available updates appears at the bottom of the window; to install them, click Install or Install All Updates, or turn on automatic updates again.
Remove an extension: Select the extension, then click Uninstall.
Installing or uninstalling extensions, and turning them on or off, may take effect immediately or after you go to a new webpage or refresh the current page.
To find Safari extensions, visit the Safari Extensions Gallery website by choosing Safari > Safari Extensions.