Fix Google Login Not Working on Claude.ai

If you are trying to log in to Claude using the 'Continue with Google' button and find yourself stuck in an endless login loop, redirecting back to the login screen, or seeing a blank page, you are facing a common browser authentication issue. This problem typically stems from blocked cross-site tracking cookies, cached credentials, or conflicting browser extensions.

Because Claude.ai uses Google's OAuth 2.0 system to authenticate your identity, any restriction on how your browser shares data with Google's login servers will prevent you from accessing your account. Use this step-by-step troubleshooting guide to resolve the login issue and regain access to your account.

1. Enable Third-Party Cookies for Google Auth

Google Sign-In requires your browser to share temporary authentication tokens between claude.ai and accounts.google.com. If your browser is configured to block third-party cookies, this handoff will fail silently.

1. In Google Chrome: Click the three vertical dots in the top right corner and open Settings. Go to Privacy and security > Third-party cookies. Ensure that "Block third-party cookies" is not selected. Alternatively, add [*.]claude.ai and [*.]google.com to your "Allowed to use third-party cookies" exceptions list.
2. In Apple Safari: Go to Safari > Settings (or Preferences) > Privacy. Uncheck Prevent cross-site tracking and ensure Block all cookies is turned off.
3. In Brave Browser: Click the Brave Shield icon in your address bar while on Claude.ai and toggle Shields to Down, or go to Brave Settings > Shields and set track/cookie blocking to standard rather than aggressive.

2. Clear Google and Claude Site Data

Corrupted cache files or outdated session cookies can trap your browser in a broken login state.

1. In your browser's address bar, click the lock icon (or settings icon) next to claude.ai.
2. Select Site settings or Cookies and site data.
3. Click Clear data or delete all listed cookies for the site.
4. Completely close your browser, reopen it, navigate directly to claude.ai/login, and try signing in again.

3. Disable Conflicting Extensions and Test in Incognito

Browser extensions designed to protect privacy, block ads, or manage passwords can block Google's authentication scripts.

1. Open an Incognito / Private Browsing window. This disables most extensions by default.
2. Navigate to claude.ai and try to log in via Google.
3. If this works, the issue is caused by one of your active extensions.
4. Back in your normal browser window, temporarily disable extensions like uBlock Origin, Privacy Badger, Ghostery, or third-party password managers one by one until you identify the extension blocking the login script.

4. Resolve Email vs. Google Account Confusion

If you originally registered your Claude account by manually typing in your Gmail address and choosing a password, attempting to log in using the "Continue with Google" button can sometimes cause system conflicts.

1. Go to the Claude login page.
2. Instead of clicking the Google button, manually type your full Gmail address into the email field and click Continue with email.
3. Check your email inbox for the temporary login link or code sent by Anthropic.
4. Log in using this link. Once inside, you can check your profile settings to see if your Google account can be linked directly.

When to escalate

If you have cleared your cache, enabled cookies, verified your extensions, and still cannot log in—or if you see an explicit error stating "Your account has been disabled" or "Authentication failed"—the issue likely lies with your account status on Anthropic's backend. Contact Anthropic Support by visiting support.anthropic.com. Provide them with your exact Gmail address, your browser version, and a screenshot of any error messages you see during the Google login process.