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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchTo manage Safari extensions on a Mac, open Safari > Settings > Extensions. There you can see installed extensions, turn them on or off, change available permissions, or uninstall them. To add one, choose Safari > Safari Extensions to open the App Store, install an extension, then enable it in Safari’s Extensions settings.
How to view extensions installed in Safari
- Open Safari.
- Choose Safari > Settings, then click Extensions. In older Safari versions, the menu item may be called Preferences.
- Select an extension to view its available settings. A checked box means it is enabled; clear the box to turn it off.
The list shows extensions installed on the Mac. Depending on your setup, Safari may also show compatible extensions under On Other Devices; selecting one there can install it on this Mac. See Apple’s Safari Extensions settings guide.
How to add a Safari extension
Safari extensions are distributed through the Mac App Store. Apple says Safari 12 or later is required to get extensions from the App Store. If your version of Safari is older, update macOS to get the Safari version available for your Mac.
- In Safari, choose Safari > Safari Extensions. The App Store opens to its Safari extensions listing.
- Choose Get or the displayed price. Sign in with your Apple Account if prompted, then click Install.
- Open the extension if prompted and follow its setup instructions.
- In Safari, choose Safari > Settings > Extensions, then select the extension’s checkbox to enable it.
Installing and enabling are separate steps: an installed extension will not run in Safari until it is enabled. Apple describes the Mac App Store as the “safest and easiest way to discover and install extensions”; its App Store extensions are reviewed, signed, hosted by Apple, and updated automatically. See Apple’s guide to using Safari extensions on Mac and Apple’s instructions for getting extensions.
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How to turn off an extension without uninstalling it
- Choose Safari > Settings > Extensions.
- Clear the checkbox beside the extension you want to disable.
This switches the extension off but leaves it installed, so you can enable it again by selecting the checkbox. The change may take effect immediately or after you navigate to another page or refresh the current one.
How to remove an extension from Safari
- Choose Safari > Settings > Extensions.
- Select the extension, then click Uninstall.
If the extension was installed as part of an app, remove the app to remove its extension. Apple’s support instructions also identify a Delete action for a custom extension created with its Describe an Extension feature. If you cannot identify what an extension does or do not expect to use it again, Apple recommends uninstalling it. See Apple’s instructions for removing Safari extensions.
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Review permissions, profiles, and private browsing
Check website access
Extensions may be able to access webpage content. Review the extensions you have installed and make sure you understand their purpose. Where an extension offers website-access controls, you can limit it to selected sites or require websites to ask before granting access. Apple explains these controls in its Safari Extensions settings guide and web app Extensions settings guide.
Allow an extension in private windows
On macOS Sonoma 14 or later, extensions that require website access are off by default in private windows. To allow one, open Safari > Settings > Extensions, select the extension, and choose Allow in Private Browsing.
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Manage extensions for profiles
Safari profiles can have extensions managed independently. Extensions for profiles other than the default are managed under the Profiles tab, and extensions are off by default for each new profile.
Share compatible extensions across Apple devices
Extension sharing is available starting with macOS Ventura 13, iOS 16, and iPadOS 16. On Mac, enable Share across devices in Safari’s Extensions settings. Apple says that extensions appear on other devices when the required Apple Account, iCloud for Safari, and two-factor authentication conditions are met. To remove a shared extension from every device, uninstall it on each device. Details are in Apple’s Safari extensions guide.
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Clear extension storage when available
Some extensions provide a Clear Storage control in their settings. Apple notes that this can be used when an extension is using more disk space than expected.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Troubleshoot missing or unselectable extensions
Safari will not let you enable an extension
A macOS security feature introduced in Catalina 10.15 can block enabling an extension in some situations, including when certain screen-recording or accessibility features interfere. Apple recommends this sequence:
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- Install the latest Apple software updates and try enabling the extension again.
- If the checkbox is still unavailable, start the Mac in Safe Mode and enable the extension in Safari.
- Restart the Mac.
Follow Apple’s troubleshooting steps for extensions you can’t turn on.
An older extension does not appear in the list
Legacy developer-signed .safariextz-style extensions no longer load in Safari, do not appear in Safari’s Extensions settings, and cannot be turned on. They are not current compatible extensions to enable from the installed list. For details, see Apple’s guide to Safari extensions.
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