Why does Firebase CLI login fail with an error reaching https://auth.firebase.tools/attest?

Below is a list of potential causes and steps to resolve the issue:

1. Check Your Node.js Version

The Firebase CLI requires Node.js v18.0.0 or later. If you’re using an older version, it can lead to issues during authentication.

Run the following command to verify your Node.js version:

BASHCopied
node --version

If your version is below v18, upgrade using a version manager like nvm:

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nvm install 18
nvm use 18

2. Network Connectivity Issues

The error indicates a failure to reach https://auth.firebase.tools/attest. Ensure that:

• Your internet connection is stable.
• There are no firewall, proxy, or VPN settings blocking access to the URL.

3. npm Permissions

If there were any permission issues during the global installation of firebase-tools, the CLI might not work correctly. If needed, review and adjust your npm permissions following the npm permissions troubleshooting guide.

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By confirming your Node.js version meets the requirements and verifying your network and permission settings, you should be able to resolve the login issue with the Firebase CLI.