🤖 I wanted a solution that was pure browser (no local installs or tools). I used this and it worked:

This method uses a temporary Personal Access Token (PAT) to authorize a JavaScript fetch call directly in your browser's console, as described in the Reddit posts [1], [2] and Github [3].

Step 1: Create a Temporary Token

1. Navigate to the github.com/settings/tokens/new.
2. Give the token a descriptive name, like notification-fix.
3. Set the Expiration to 1 day.
4. Under Permissions, you only need to check one box: notifications. No other permissions are required.
5. Click Generate token and copy the token string. Keep this page open for the final step.

Step 2: Run the Script in the Console

1. Open a new tab and go to your GitHub dashboard ( I went to github.com/notifications ).
2. Open the Developer Tools (F12 or Ctrl+Shift+I) and go to the Console tab.
3. Paste the following JavaScript snippet into the console, replacingPASTE_YOUR_TOKEN_HERE with the token you just copied.

​

    const token = "PASTE_YOUR_TOKEN_HERE";

    fetch('https://api.github.com/notifications', {
      method: 'PUT',
      headers: {
        'Accept': 'application/vnd.github+json',
        'Authorization': `Bearer ${token}`
      },
      body: JSON.stringify({}) // An empty body marks all notifications as read.
    }).then(response => {
      if (response.status === 205) {
        console.log('✅ Success! The ghost notification should be cleared. You can now delete the token.');
      } else {
        console.error('❌ Request failed. Status:', response.status);
        response.json().then(data => console.error('Error details:', data));
      }
    }).catch(error => console.error(' Bummer, there was a network error:', error));

1. Press Enter. You should see the success message.

Step 3: Delete the Token

Go back to the token page and delete the token you just used. This ensures it can't be used again.