When you install an extension on Firefox, you may see a message asking for permission to access data or features.

👁 Permissions request add-ons
👁 Fx128AddExtensionPermissions

Extensions may also request optional permissions to support additional functionality. The first time the extension tries to access those features, you will see a message asking for you to allow or deny those optional permissions.

👁 Optional permissions request on Firefox for desktop

In the Firefox Add-ons Manager, you can also change access to data or features to your installed extensions at any time.

View and manage optional extension permissions

1. Click the menu button 👁 Fx89menuButton
   , click Add-ons and themesExtensions and themes and select Extensions.
2. Click the name of an installed extension to see more details about that extension.

   👁 ExpandedExtensionCard
   👁 fx151extensionsoptional
   

3. Select PermissionsPermissions and data to see all permissions requested by the extension.

   👁 ExpandedExtensionPermissions
   👁 fx151permissionsanddata
   

4. If an extension has optional permissions, they will be shown under Optional permissions for added functionalityOptional. Turn each optional permission on or off with the toggle switch.

   👁 ExtensionOptionalToggle
   👁 fx151readandmodify
   

Related content

• About permission request messages for Firefox extensions
• Manage your extensions using the extensions button in the toolbar