# Safari Web Extension

Bitwarden's Safari web extension is a port of the prior app extension designed for use with [Safari 14](https://developer.apple.com/documentation/safariservices/safari_web_extensions/converting_a_safari_app_extension_to_a_safari_web_extension?language=objc) and newer. The Safari web extension is packaged with the Bitwarden desktop app available on the app store, so you don't need to download it separately.

> [!NOTE] Mac OS Safari app
> Due to changes by Apple, Safari limits web extension use to **only those obtained through Mac App Store downloads**. As of the [2021-03-11 Release](https://bitwarden.com/it-it/help/releasenotes/), users will not be able to use a Bitwarden Safari extension obtained through a `.dmg` installation from [bitwarden.com/download](https://bitwarden.com/it-it/download/) or any other non-App Store source.
> 
> **If you are using a Safari version prior to 14**, you can continue using a `.dmg` installation, which can be downloaded from [bitwarden.com/download](https://bitwarden.com/it-it/download/) by clicking **more desktop installation options >**. Keeping the `.dmg` outside of the Applications folder should allow you to simultaneously use both an older Safari extension and the latest desktop app.

The Safari web extension has full feature parity to the prior app extension. For developer detail on the difference between Safari web extensions and app extensions, click [here](https://developer.apple.com/documentation/safariservices/safari_web_extensions/converting_a_safari_app_extension_to_a_safari_web_extension?language=objc).

## Enable the extension

Before enabling the Safari web extension, run the desktop app at least once. In Safari:

1. Open the **Safari** menu and select **Settings**.
2. Navigate to the **Extensions** page.
3. Check the **Bitwarden** checkbox, and select **Turn on** in the confirmation dialog.

> [!NOTE] Extension for mobile browsers instead of desktop browsers
> These instructions apply to the browser extensions for desktop web browsers, learn how to setup an extension for mobile web browsers on iOS [here](https://bitwarden.com/it-it/help/auto-fill-ios/#browser-app-extension-autofill/).