> For the complete documentation index, see [llms.txt](https://docs.polkagate.xyz/polkagate/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.polkagate.xyz/polkagate/polkagate-extension-user-guide/settings/extension-settings/biometric-unlock.md).

# Biometric Unlock

You can unlock the PolkaGate extension using Touch ID / fingerprint.

To enable it, go to **Settings** → **Extension Settings** and turn on the Biometric Unlock toggle, as shown below.

<figure><img src="/files/3yp3yjZig6uQFAUpiFgK" alt="" width="375"><figcaption><p>Biometric Unlock</p></figcaption></figure>

When you turn the option on, a popup will appear asking you to enter your extension password.

After entering your password, click the **Enable Biometrics** button in the popup.

<figure><img src="/files/WWl1oEymBJRFIIGlUwWm" alt="" width="375"><figcaption><p>Enter your password</p></figcaption></figure>

Next, you’ll be asked to choose where to save your passkey, such as Google **Password Manager** or **iCloud** **Keychain**, depending on your operating system and browser.

Choose one option, then follow the prompt to place your finger on your computer or laptop’s **Touch ID / fingerprint sensor**.

<figure><img src="/files/OlhnUek4Ir82rUgTLaKy" alt="" width="375"><figcaption><p>Touch ID</p></figcaption></figure>

Once you place your finger on the Touch ID sensor, your passkey will be securely saved in the option you selected.

If everything goes well, you’ll see a success message, and setup is complete.

From then on, whenever the PolkaGate extension is locked — either automatically or manually by clicking the lock icon — you’ll see the unlock screen asking you to use Touch ID. You can unlock without entering your password, while still having the option to use your password whenever you prefer.

<figure><img src="/files/6SrDsvGZyQN5WldqCfAY" alt="" width="375"><figcaption><p>Login with Touch ID</p></figcaption></figure>