These are the general steps you need to follow to install Firefox on your Chromebook:

1. Launch the Google Play Store on your Chromebook.

2. Search for Firefox in the search bar and click on it.

3. Click on the Install button to start the installation process.

4. Wait for the installation to complete.

5. Once Firefox is installed, you’ll find it in your app launcher or in your shelf.

6. Launch Firefox and start browsing the web.

If you don’t have access to the Google Play Store on your Chromebook, you can download Firefox from the Mozilla website and install it manually by following these steps:

1. Open the Google Chrome browser on your Chromebook.

2. Visit the Mozilla Firefox download page.

3. Click on the Download Now button to start the download.

4. Once the download is complete, click on the file to open it.

5. Click on the Install button to start the installation process.

6. Wait for the installation to complete.

7. Once Firefox is installed, you’ll find it in your app launcher or in your shelf.

8. Launch Firefox and start browsing the web.