---
sidebar_position: 4
---

# Lethean Companion

Lethean Companion is a Metamask-like browser extension that enables authentication and connects the Lethean desktop wallet to the web applications built on Lethean.

It's your gateway to the broader Lethean ecosystem!

:::info

Lethean Companion is also directly integrated into the Lethean Mobile Wallet app. To access it, simply click on "Browser" and navigate to the Lethean dApp you wish to use.

:::

## How to use (Desktop)

<div style={{ position: 'relative', paddingBottom: '56.25%', height: 0 }}>
  <iframe
    src="https://www.youtube.com/embed/bVuuYOduZvE"
    title="YouTube video player"
    style={{ 
     position: 'absolute', 
     top: 0, 
     left: 0, 
     width: '100%', 
     height: '100%' 
    }}
    frameBorder="0"
    allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share"
    allowFullScreen
  />
</div>

1. First, open your Lethean desktop wallet, and wait until it finishes syncing the blockchain.

2. Go to settings, and flip the "Lethean Companion" switch. If you haven't set up a master password yet, it will ask you to create a new one in the fields below.

3. Right-click to copy the secret that will be displayed.

   ![Lethean wallet secret](/img/use/companion/comp_secret.png)

4. Open your browser and install the Lethean Companion extension from the Chrome Web Store.[ \[Here\]](https://chromewebstore.google.com/detail/lethean-companion/akcgnllhhhkcpmlenfpicmcpgfpindlb)

5. Click on the extension, and paste the secret you copied in the appropriate field, as well as the password that you will use to log in to the Companion.

6. You can now register an[ alias](https://testnet-docs.lthn.io/docs/learn/lethean-features/overview#aliases) if you haven't done so already, this will be displayed as your identity when using the Lethean ecosystem.

   ![Companion extension showcase](/img/use/companion/companion.png)

7. To connect to a Lethean web application, simply click on its "Connect Wallet" button and select Lethean Extension if asked.

   ![connect wallet pop-up](/img/use/companion/connect_wallet.png)

8. A popup will appear on the Companion to authorize the connection, you will only need to this on the first time.

   ![Sign request pop-up in Lethean Companion](/img/use/companion/sign_request.png)

**And that's it! Welcome to the Lethean Ecosystem!**

