Firefox Relay interfers with login queryselector on Wolfram's account sign-in page

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Firefox Version: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/114.0

Steps to Reproduce

1. Open Firefox's Browser Console
2. Navigate to https://account.wolfram.com/login/oauth2/sign-in
3. Select the email input element
4. Enter an email address
5. Click "Continue"

Expected Behavior

No errors in console or from sign-in form validation.

Actual Behavior

In step 3. the queryselector error appears in the console as Uncaught TypeError: e.target.parentElement.querySelector(...) is null. In step 5. the form validation error appears on the form as Please enter your email address.

Notes

• Possible cause: the Firefox Relay button is injected into the form input element immediately before the usual button element added to sign-in form, causing the page script's queryselector to fail.
• Workaround: Disable Firefox Relay or open link in a New Private Window without enabled extensions.